Home / 10,885.20-15,024.96-8,651.04

Finding the Fourth Proportional to 10,885.20, 15,024.96 and 8,651.04

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Solution

The fourth proportional to 10,885.20, 15,024.96 and 8,651.04 is: 11,941.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,885.20 : 15,024.96 = 8,651.04 : x
  2. Step 2: Convert to fraction form
    10,885.20/15,024.96 = 8,651.04/x
  3. Step 3: Cross multiply
    10,885.20x = 15,024.96 × 8,651.04
  4. Step 4: Simplify right side
    10,885.20x = 129,981,529.96
  5. Step 5: Solve for x
    x = 129,981,529.96/10,885.20
  6. Step 6: Final answer
    x = 11,941.12

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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.