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Finding the Fourth Proportional to 15,943.96, 22,002.96 and 8,871.04

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Solution

The fourth proportional to 15,943.96, 22,002.96 and 8,871.04 is: 12,242.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,943.96 : 22,002.96 = 8,871.04 : x
  2. Step 2: Convert to fraction form
    15,943.96/22,002.96 = 8,871.04/x
  3. Step 3: Cross multiply
    15,943.96x = 22,002.96 × 8,871.04
  4. Step 4: Simplify right side
    15,943.96x = 195,189,138.28
  5. Step 5: Solve for x
    x = 195,189,138.28/15,943.96
  6. Step 6: Final answer
    x = 12,242.20

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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.