Home / 10,354.20-15,531.30-2,959.10

Finding the Fourth Proportional to 10,354.20, 15,531.30 and 2,959.10

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Solution

The fourth proportional to 10,354.20, 15,531.30 and 2,959.10 is: 4,438.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,354.20 : 15,531.30 = 2,959.10 : x
  2. Step 2: Convert to fraction form
    10,354.20/15,531.30 = 2,959.10/x
  3. Step 3: Cross multiply
    10,354.20x = 15,531.30 × 2,959.10
  4. Step 4: Simplify right side
    10,354.20x = 45,958,669.83
  5. Step 5: Solve for x
    x = 45,958,669.83/10,354.20
  6. Step 6: Final answer
    x = 4,438.65

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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.