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Finding the Fourth Proportional to 8,279.88, 11,426.23 and 4,553.88

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Solution

The fourth proportional to 8,279.88, 11,426.23 and 4,553.88 is: 6,284.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.88 : 11,426.23 = 4,553.88 : x
  2. Step 2: Convert to fraction form
    8,279.88/11,426.23 = 4,553.88/x
  3. Step 3: Cross multiply
    8,279.88x = 11,426.23 × 4,553.88
  4. Step 4: Simplify right side
    8,279.88x = 52,033,680.27
  5. Step 5: Solve for x
    x = 52,033,680.27/8,279.88
  6. Step 6: Final answer
    x = 6,284.35

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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.