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Finding the Fourth Proportional to 15,101.73, 20,842.25 and 8,816.13

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Solution

The fourth proportional to 15,101.73, 20,842.25 and 8,816.13 is: 12,167.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,101.73 : 20,842.25 = 8,816.13 : x
  2. Step 2: Convert to fraction form
    15,101.73/20,842.25 = 8,816.13/x
  3. Step 3: Cross multiply
    15,101.73x = 20,842.25 × 8,816.13
  4. Step 4: Simplify right side
    15,101.73x = 183,747,941.41
  5. Step 5: Solve for x
    x = 183,747,941.41/15,101.73
  6. Step 6: Final answer
    x = 12,167.34

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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.