Home / 8,179.52-11,287.89-4,642.72

Finding the Fourth Proportional to 8,179.52, 11,287.89 and 4,642.72

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Solution

The fourth proportional to 8,179.52, 11,287.89 and 4,642.72 is: 6,407.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.52 : 11,287.89 = 4,642.72 : x
  2. Step 2: Convert to fraction form
    8,179.52/11,287.89 = 4,642.72/x
  3. Step 3: Cross multiply
    8,179.52x = 11,287.89 × 4,642.72
  4. Step 4: Simplify right side
    8,179.52x = 52,406,484.44
  5. Step 5: Solve for x
    x = 52,406,484.44/8,179.52
  6. Step 6: Final answer
    x = 6,407.04

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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.