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Finding the Fourth Proportional to 8,279, 11,425.04 and 4,553

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Solution

The fourth proportional to 8,279, 11,425.04 and 4,553 is: 6,283.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279 : 11,425.04 = 4,553 : x
  2. Step 2: Convert to fraction form
    8,279/11,425.04 = 4,553/x
  3. Step 3: Cross multiply
    8,279x = 11,425.04 × 4,553
  4. Step 4: Simplify right side
    8,279x = 52,018,207.12
  5. Step 5: Solve for x
    x = 52,018,207.12/8,279
  6. Step 6: Final answer
    x = 6,283.15

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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.