Home / 10,691.20-16,054.08-5,507.20

Finding the Fourth Proportional to 10,691.20, 16,054.08 and 5,507.20

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Solution

The fourth proportional to 10,691.20, 16,054.08 and 5,507.20 is: 8,269.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,691.20 : 16,054.08 = 5,507.20 : x
  2. Step 2: Convert to fraction form
    10,691.20/16,054.08 = 5,507.20/x
  3. Step 3: Cross multiply
    10,691.20x = 16,054.08 × 5,507.20
  4. Step 4: Simplify right side
    10,691.20x = 88,413,029.38
  5. Step 5: Solve for x
    x = 88,413,029.38/10,691.20
  6. Step 6: Final answer
    x = 8,269.70

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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.