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Finding the Fourth Proportional to 9,079.76, 12,531.24 and 5,101.64

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Solution

The fourth proportional to 9,079.76, 12,531.24 and 5,101.64 is: 7,040.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,079.76 : 12,531.24 = 5,101.64 : x
  2. Step 2: Convert to fraction form
    9,079.76/12,531.24 = 5,101.64/x
  3. Step 3: Cross multiply
    9,079.76x = 12,531.24 × 5,101.64
  4. Step 4: Simplify right side
    9,079.76x = 63,929,905.34
  5. Step 5: Solve for x
    x = 63,929,905.34/9,079.76
  6. Step 6: Final answer
    x = 7,040.92

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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.