Home / 8,220.92-11,342.09-4,681.62

Finding the Fourth Proportional to 8,220.92, 11,342.09 and 4,681.62

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Solution

The fourth proportional to 8,220.92, 11,342.09 and 4,681.62 is: 6,459.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.92 : 11,342.09 = 4,681.62 : x
  2. Step 2: Convert to fraction form
    8,220.92/11,342.09 = 4,681.62/x
  3. Step 3: Cross multiply
    8,220.92x = 11,342.09 × 4,681.62
  4. Step 4: Simplify right side
    8,220.92x = 53,099,367.09
  5. Step 5: Solve for x
    x = 53,099,367.09/8,220.92
  6. Step 6: Final answer
    x = 6,459.06

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Half scale
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Double scale
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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.