Home / 13,909.59-20,867.10-6,118.38

Finding the Fourth Proportional to 13,909.59, 20,867.10 and 6,118.38

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Solution

The fourth proportional to 13,909.59, 20,867.10 and 6,118.38 is: 9,178.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.59 : 20,867.10 = 6,118.38 : x
  2. Step 2: Convert to fraction form
    13,909.59/20,867.10 = 6,118.38/x
  3. Step 3: Cross multiply
    13,909.59x = 20,867.10 × 6,118.38
  4. Step 4: Simplify right side
    13,909.59x = 127,672,847.30
  5. Step 5: Solve for x
    x = 127,672,847.30/13,909.59
  6. Step 6: Final answer
    x = 9,178.76

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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.