Home / 8,220.83-11,341.97-4,681.53

Finding the Fourth Proportional to 8,220.83, 11,341.97 and 4,681.53

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Solution

The fourth proportional to 8,220.83, 11,341.97 and 4,681.53 is: 6,458.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.83 : 11,341.97 = 4,681.53 : x
  2. Step 2: Convert to fraction form
    8,220.83/11,341.97 = 4,681.53/x
  3. Step 3: Cross multiply
    8,220.83x = 11,341.97 × 4,681.53
  4. Step 4: Simplify right side
    8,220.83x = 53,097,749.41
  5. Step 5: Solve for x
    x = 53,097,749.41/8,220.83
  6. Step 6: Final answer
    x = 6,458.93

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Find fourth proportional to 4,110.41, 5,670.98 and 2,340.77
Half scale
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Double scale
Find fourth proportional to 8,221.83, 11,343.34 and 4,682.53
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.