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Finding the Fourth Proportional to 15,066.43, 20,792.90 and 8,354.16

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Solution

The fourth proportional to 15,066.43, 20,792.90 and 8,354.16 is: 11,529.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,066.43 : 20,792.90 = 8,354.16 : x
  2. Step 2: Convert to fraction form
    15,066.43/20,792.90 = 8,354.16/x
  3. Step 3: Cross multiply
    15,066.43x = 20,792.90 × 8,354.16
  4. Step 4: Simplify right side
    15,066.43x = 173,707,171.69
  5. Step 5: Solve for x
    x = 173,707,171.69/15,066.43
  6. Step 6: Final answer
    x = 11,529.42

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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.