Home / 10,199.28-15,352.68-8,695.92

Finding the Fourth Proportional to 10,199.28, 15,352.68 and 8,695.92

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Solution

The fourth proportional to 10,199.28, 15,352.68 and 8,695.92 is: 13,089.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,199.28 : 15,352.68 = 8,695.92 : x
  2. Step 2: Convert to fraction form
    10,199.28/15,352.68 = 8,695.92/x
  3. Step 3: Cross multiply
    10,199.28x = 15,352.68 × 8,695.92
  4. Step 4: Simplify right side
    10,199.28x = 133,505,677.07
  5. Step 5: Solve for x
    x = 133,505,677.07/10,199.28
  6. Step 6: Final answer
    x = 13,089.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.