Home / 8,077.71-11,147.13-4,721.04

Finding the Fourth Proportional to 8,077.71, 11,147.13 and 4,721.04

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Solution

The fourth proportional to 8,077.71, 11,147.13 and 4,721.04 is: 6,514.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.71 : 11,147.13 = 4,721.04 : x
  2. Step 2: Convert to fraction form
    8,077.71/11,147.13 = 4,721.04/x
  3. Step 3: Cross multiply
    8,077.71x = 11,147.13 × 4,721.04
  4. Step 4: Simplify right side
    8,077.71x = 52,626,046.62
  5. Step 5: Solve for x
    x = 52,626,046.62/8,077.71
  6. Step 6: Final answer
    x = 6,514.97

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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.