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Finding the Fourth Proportional to 8,171.91, 11,279.25 and 4,637.25

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Solution

The fourth proportional to 8,171.91, 11,279.25 and 4,637.25 is: 6,400.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,171.91 : 11,279.25 = 4,637.25 : x
  2. Step 2: Convert to fraction form
    8,171.91/11,279.25 = 4,637.25/x
  3. Step 3: Cross multiply
    8,171.91x = 11,279.25 × 4,637.25
  4. Step 4: Simplify right side
    8,171.91x = 52,304,702.06
  5. Step 5: Solve for x
    x = 52,304,702.06/8,171.91
  6. Step 6: Final answer
    x = 6,400.55

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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.