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Finding the Fourth Proportional to 15,207.52, 20,986.17 and 8,493.27

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Solution

The fourth proportional to 15,207.52, 20,986.17 and 8,493.27 is: 11,720.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,207.52 : 20,986.17 = 8,493.27 : x
  2. Step 2: Convert to fraction form
    15,207.52/20,986.17 = 8,493.27/x
  3. Step 3: Cross multiply
    15,207.52x = 20,986.17 × 8,493.27
  4. Step 4: Simplify right side
    15,207.52x = 178,241,208.08
  5. Step 5: Solve for x
    x = 178,241,208.08/15,207.52
  6. Step 6: Final answer
    x = 11,720.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.