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Finding the Fourth Proportional to 8,279.47, 11,425.89 and 4,502.89

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Solution

The fourth proportional to 8,279.47, 11,425.89 and 4,502.89 is: 6,214.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.47 : 11,425.89 = 4,502.89 : x
  2. Step 2: Convert to fraction form
    8,279.47/11,425.89 = 4,502.89/x
  3. Step 3: Cross multiply
    8,279.47x = 11,425.89 × 4,502.89
  4. Step 4: Simplify right side
    8,279.47x = 51,449,525.82
  5. Step 5: Solve for x
    x = 51,449,525.82/8,279.47
  6. Step 6: Final answer
    x = 6,214.11

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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.