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Finding the Fourth Proportional to 8,830.70, 13,248.04 and 2,987.14

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Solution

The fourth proportional to 8,830.70, 13,248.04 and 2,987.14 is: 4,481.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,830.70 : 13,248.04 = 2,987.14 : x
  2. Step 2: Convert to fraction form
    8,830.70/13,248.04 = 2,987.14/x
  3. Step 3: Cross multiply
    8,830.70x = 13,248.04 × 2,987.14
  4. Step 4: Simplify right side
    8,830.70x = 39,573,750.21
  5. Step 5: Solve for x
    x = 39,573,750.21/8,830.70
  6. Step 6: Final answer
    x = 4,481.38

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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.