Home / 10,923.20-16,387.68-3,132.64

Finding the Fourth Proportional to 10,923.20, 16,387.68 and 3,132.64

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Solution

The fourth proportional to 10,923.20, 16,387.68 and 3,132.64 is: 4,699.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,923.20 : 16,387.68 = 3,132.64 : x
  2. Step 2: Convert to fraction form
    10,923.20/16,387.68 = 3,132.64/x
  3. Step 3: Cross multiply
    10,923.20x = 16,387.68 × 3,132.64
  4. Step 4: Simplify right side
    10,923.20x = 51,336,701.88
  5. Step 5: Solve for x
    x = 51,336,701.88/10,923.20
  6. Step 6: Final answer
    x = 4,699.79

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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.