Home / 10,649.52-15,979.14-5,459.04

Finding the Fourth Proportional to 10,649.52, 15,979.14 and 5,459.04

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Solution

The fourth proportional to 10,649.52, 15,979.14 and 5,459.04 is: 8,191.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,649.52 : 15,979.14 = 5,459.04 : x
  2. Step 2: Convert to fraction form
    10,649.52/15,979.14 = 5,459.04/x
  3. Step 3: Cross multiply
    10,649.52x = 15,979.14 × 5,459.04
  4. Step 4: Simplify right side
    10,649.52x = 87,230,764.43
  5. Step 5: Solve for x
    x = 87,230,764.43/10,649.52
  6. Step 6: Final answer
    x = 8,191.05

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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.