Home / 11,002.20-16,462.08-6,543.60

Finding the Fourth Proportional to 11,002.20, 16,462.08 and 6,543.60

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Solution

The fourth proportional to 11,002.20, 16,462.08 and 6,543.60 is: 9,790.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,002.20 : 16,462.08 = 6,543.60 : x
  2. Step 2: Convert to fraction form
    11,002.20/16,462.08 = 6,543.60/x
  3. Step 3: Cross multiply
    11,002.20x = 16,462.08 × 6,543.60
  4. Step 4: Simplify right side
    11,002.20x = 107,721,266.69
  5. Step 5: Solve for x
    x = 107,721,266.69/11,002.20
  6. Step 6: Final answer
    x = 9,790.88

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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.