Home / 9,982.72-14,967.60-8,531.20

Finding the Fourth Proportional to 9,982.72, 14,967.60 and 8,531.20

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Solution

The fourth proportional to 9,982.72, 14,967.60 and 8,531.20 is: 12,791.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,982.72 : 14,967.60 = 8,531.20 : x
  2. Step 2: Convert to fraction form
    9,982.72/14,967.60 = 8,531.20/x
  3. Step 3: Cross multiply
    9,982.72x = 14,967.60 × 8,531.20
  4. Step 4: Simplify right side
    9,982.72x = 127,691,589.12
  5. Step 5: Solve for x
    x = 127,691,589.12/9,982.72
  6. Step 6: Final answer
    x = 12,791.26

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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.