Home / 8,425.28-11,622.48-6,432.38

Finding the Fourth Proportional to 8,425.28, 11,622.48 and 6,432.38

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Solution

The fourth proportional to 8,425.28, 11,622.48 and 6,432.38 is: 8,873.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,425.28 : 11,622.48 = 6,432.38 : x
  2. Step 2: Convert to fraction form
    8,425.28/11,622.48 = 6,432.38/x
  3. Step 3: Cross multiply
    8,425.28x = 11,622.48 × 6,432.38
  4. Step 4: Simplify right side
    8,425.28x = 74,760,207.90
  5. Step 5: Solve for x
    x = 74,760,207.90/8,425.28
  6. Step 6: Final answer
    x = 8,873.32

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Half scale
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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.