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Finding the Fourth Proportional to 10,080, 15,116.07 and 5,921.07

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Solution

The fourth proportional to 10,080, 15,116.07 and 5,921.07 is: 8,879.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,080 : 15,116.07 = 5,921.07 : x
  2. Step 2: Convert to fraction form
    10,080/15,116.07 = 5,921.07/x
  3. Step 3: Cross multiply
    10,080x = 15,116.07 × 5,921.07
  4. Step 4: Simplify right side
    10,080x = 89,503,308.59
  5. Step 5: Solve for x
    x = 89,503,308.59/10,080
  6. Step 6: Final answer
    x = 8,879.30

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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.