Home / 10,516.32-15,776.64-3,591.36

Finding the Fourth Proportional to 10,516.32, 15,776.64 and 3,591.36

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Solution

The fourth proportional to 10,516.32, 15,776.64 and 3,591.36 is: 5,387.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,516.32 : 15,776.64 = 3,591.36 : x
  2. Step 2: Convert to fraction form
    10,516.32/15,776.64 = 3,591.36/x
  3. Step 3: Cross multiply
    10,516.32x = 15,776.64 × 3,591.36
  4. Step 4: Simplify right side
    10,516.32x = 56,659,593.83
  5. Step 5: Solve for x
    x = 56,659,593.83/10,516.32
  6. Step 6: Final answer
    x = 5,387.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.