Home / 10,422.30-15,633.45-5,226.30

Finding the Fourth Proportional to 10,422.30, 15,633.45 and 5,226.30

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Solution

The fourth proportional to 10,422.30, 15,633.45 and 5,226.30 is: 7,839.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,422.30 : 15,633.45 = 5,226.30 : x
  2. Step 2: Convert to fraction form
    10,422.30/15,633.45 = 5,226.30/x
  3. Step 3: Cross multiply
    10,422.30x = 15,633.45 × 5,226.30
  4. Step 4: Simplify right side
    10,422.30x = 81,705,099.74
  5. Step 5: Solve for x
    x = 81,705,099.74/10,422.30
  6. Step 6: Final answer
    x = 7,839.45

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Similar ratio
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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.