Home / 10,987.30-16,452.15-8,049.70

Finding the Fourth Proportional to 10,987.30, 16,452.15 and 8,049.70

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Solution

The fourth proportional to 10,987.30, 16,452.15 and 8,049.70 is: 12,053.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987.30 : 16,452.15 = 8,049.70 : x
  2. Step 2: Convert to fraction form
    10,987.30/16,452.15 = 8,049.70/x
  3. Step 3: Cross multiply
    10,987.30x = 16,452.15 × 8,049.70
  4. Step 4: Simplify right side
    10,987.30x = 132,434,871.86
  5. Step 5: Solve for x
    x = 132,434,871.86/10,987.30
  6. Step 6: Final answer
    x = 12,053.45

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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.