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Finding the Fourth Proportional to 15,374.64, 23,064 and 5,515.04

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Solution

The fourth proportional to 15,374.64, 23,064 and 5,515.04 is: 8,273.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,374.64 : 23,064 = 5,515.04 : x
  2. Step 2: Convert to fraction form
    15,374.64/23,064 = 5,515.04/x
  3. Step 3: Cross multiply
    15,374.64x = 23,064 × 5,515.04
  4. Step 4: Simplify right side
    15,374.64x = 127,198,882.56
  5. Step 5: Solve for x
    x = 127,198,882.56/15,374.64
  6. Step 6: Final answer
    x = 8,273.29

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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.