Home / 10,998.30-16,489.35-4,753.20

Finding the Fourth Proportional to 10,998.30, 16,489.35 and 4,753.20

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Solution

The fourth proportional to 10,998.30, 16,489.35 and 4,753.20 is: 7,126.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.30 : 16,489.35 = 4,753.20 : x
  2. Step 2: Convert to fraction form
    10,998.30/16,489.35 = 4,753.20/x
  3. Step 3: Cross multiply
    10,998.30x = 16,489.35 × 4,753.20
  4. Step 4: Simplify right side
    10,998.30x = 78,377,178.42
  5. Step 5: Solve for x
    x = 78,377,178.42/10,998.30
  6. Step 6: Final answer
    x = 7,126.30

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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.