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Finding the Fourth Proportional to 15,387.58, 23,073.17 and 7,984.58

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Solution

The fourth proportional to 15,387.58, 23,073.17 and 7,984.58 is: 11,972.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,387.58 : 23,073.17 = 7,984.58 : x
  2. Step 2: Convert to fraction form
    15,387.58/23,073.17 = 7,984.58/x
  3. Step 3: Cross multiply
    15,387.58x = 23,073.17 × 7,984.58
  4. Step 4: Simplify right side
    15,387.58x = 184,229,589.48
  5. Step 5: Solve for x
    x = 184,229,589.48/15,387.58
  6. Step 6: Final answer
    x = 11,972.62

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1.5x scale

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.