Home / 11,690.38-16,132.50-6,385.24

Finding the Fourth Proportional to 11,690.38, 16,132.50 and 6,385.24

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Solution

The fourth proportional to 11,690.38, 16,132.50 and 6,385.24 is: 8,811.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.38 : 16,132.50 = 6,385.24 : x
  2. Step 2: Convert to fraction form
    11,690.38/16,132.50 = 6,385.24/x
  3. Step 3: Cross multiply
    11,690.38x = 16,132.50 × 6,385.24
  4. Step 4: Simplify right side
    11,690.38x = 103,009,884.30
  5. Step 5: Solve for x
    x = 103,009,884.30/11,690.38
  6. Step 6: Final answer
    x = 8,811.51

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Find fourth proportional to 11,691.38, 16,133.88 and 6,386.24
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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.