Home / 8,151.20-11,248.64-4,614.32

Finding the Fourth Proportional to 8,151.20, 11,248.64 and 4,614.32

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Solution

The fourth proportional to 8,151.20, 11,248.64 and 4,614.32 is: 6,367.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.20 : 11,248.64 = 4,614.32 : x
  2. Step 2: Convert to fraction form
    8,151.20/11,248.64 = 4,614.32/x
  3. Step 3: Cross multiply
    8,151.20x = 11,248.64 × 4,614.32
  4. Step 4: Simplify right side
    8,151.20x = 51,904,824.52
  5. Step 5: Solve for x
    x = 51,904,824.52/8,151.20
  6. Step 6: Final answer
    x = 6,367.75

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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.