Home / 10,529.28-14,519.52-9,042.12

Finding the Fourth Proportional to 10,529.28, 14,519.52 and 9,042.12

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Solution

The fourth proportional to 10,529.28, 14,519.52 and 9,042.12 is: 12,468.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,529.28 : 14,519.52 = 9,042.12 : x
  2. Step 2: Convert to fraction form
    10,529.28/14,519.52 = 9,042.12/x
  3. Step 3: Cross multiply
    10,529.28x = 14,519.52 × 9,042.12
  4. Step 4: Simplify right side
    10,529.28x = 131,287,242.18
  5. Step 5: Solve for x
    x = 131,287,242.18/10,529.28
  6. Step 6: Final answer
    x = 12,468.78

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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.