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Finding the Fourth Proportional to 8,757.82, 13,129.80 and 4,373.02

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Solution

The fourth proportional to 8,757.82, 13,129.80 and 4,373.02 is: 6,556.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.82 : 13,129.80 = 4,373.02 : x
  2. Step 2: Convert to fraction form
    8,757.82/13,129.80 = 4,373.02/x
  3. Step 3: Cross multiply
    8,757.82x = 13,129.80 × 4,373.02
  4. Step 4: Simplify right side
    8,757.82x = 57,416,878.00
  5. Step 5: Solve for x
    x = 57,416,878.00/8,757.82
  6. Step 6: Final answer
    x = 6,556.07

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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.