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Finding the Fourth Proportional to 8,750.63, 13,132.10 and 7,914.11

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Solution

The fourth proportional to 8,750.63, 13,132.10 and 7,914.11 is: 11,876.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.63 : 13,132.10 = 7,914.11 : x
  2. Step 2: Convert to fraction form
    8,750.63/13,132.10 = 7,914.11/x
  3. Step 3: Cross multiply
    8,750.63x = 13,132.10 × 7,914.11
  4. Step 4: Simplify right side
    8,750.63x = 103,928,883.93
  5. Step 5: Solve for x
    x = 103,928,883.93/8,750.63
  6. Step 6: Final answer
    x = 11,876.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.