Home / 10,909.52-16,359.12-5,977.76

Finding the Fourth Proportional to 10,909.52, 16,359.12 and 5,977.76

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Solution

The fourth proportional to 10,909.52, 16,359.12 and 5,977.76 is: 8,963.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.52 : 16,359.12 = 5,977.76 : x
  2. Step 2: Convert to fraction form
    10,909.52/16,359.12 = 5,977.76/x
  3. Step 3: Cross multiply
    10,909.52x = 16,359.12 × 5,977.76
  4. Step 4: Simplify right side
    10,909.52x = 97,790,893.17
  5. Step 5: Solve for x
    x = 97,790,893.17/10,909.52
  6. Step 6: Final answer
    x = 8,963.81

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1.5x scale

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.