Home / 10,987.35-16,479.34-3,591.85

Finding the Fourth Proportional to 10,987.35, 16,479.34 and 3,591.85

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Solution

The fourth proportional to 10,987.35, 16,479.34 and 3,591.85 is: 5,387.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987.35 : 16,479.34 = 3,591.85 : x
  2. Step 2: Convert to fraction form
    10,987.35/16,479.34 = 3,591.85/x
  3. Step 3: Cross multiply
    10,987.35x = 16,479.34 × 3,591.85
  4. Step 4: Simplify right side
    10,987.35x = 59,191,267.20
  5. Step 5: Solve for x
    x = 59,191,267.20/10,987.35
  6. Step 6: Final answer
    x = 5,387.22

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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.