Home / 8,220.12-11,342.61-4,682.58

Finding the Fourth Proportional to 8,220.12, 11,342.61 and 4,682.58

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Solution

The fourth proportional to 8,220.12, 11,342.61 and 4,682.58 is: 6,461.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.12 : 11,342.61 = 4,682.58 : x
  2. Step 2: Convert to fraction form
    8,220.12/11,342.61 = 4,682.58/x
  3. Step 3: Cross multiply
    8,220.12x = 11,342.61 × 4,682.58
  4. Step 4: Simplify right side
    8,220.12x = 53,112,678.73
  5. Step 5: Solve for x
    x = 53,112,678.73/8,220.12
  6. Step 6: Final answer
    x = 6,461.30

Related Problems

Find fourth proportional to 4,110.06, 5,671.31 and 2,341.29
Half scale
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Double scale
Find fourth proportional to 8,221.12, 11,343.99 and 4,683.58
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.