Home / 9,063.20-12,489.44-6,540.80

Finding the Fourth Proportional to 9,063.20, 12,489.44 and 6,540.80

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Solution

The fourth proportional to 9,063.20, 12,489.44 and 6,540.80 is: 9,013.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,063.20 : 12,489.44 = 6,540.80 : x
  2. Step 2: Convert to fraction form
    9,063.20/12,489.44 = 6,540.80/x
  3. Step 3: Cross multiply
    9,063.20x = 12,489.44 × 6,540.80
  4. Step 4: Simplify right side
    9,063.20x = 81,690,929.15
  5. Step 5: Solve for x
    x = 81,690,929.15/9,063.20
  6. Step 6: Final answer
    x = 9,013.48

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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.