Home / 10,949.40-16,432.20-4,380.30

Finding the Fourth Proportional to 10,949.40, 16,432.20 and 4,380.30

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Solution

The fourth proportional to 10,949.40, 16,432.20 and 4,380.30 is: 6,573.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,949.40 : 16,432.20 = 4,380.30 : x
  2. Step 2: Convert to fraction form
    10,949.40/16,432.20 = 4,380.30/x
  3. Step 3: Cross multiply
    10,949.40x = 16,432.20 × 4,380.30
  4. Step 4: Simplify right side
    10,949.40x = 71,977,965.66
  5. Step 5: Solve for x
    x = 71,977,965.66/10,949.40
  6. Step 6: Final answer
    x = 6,573.69

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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.