Home / 13,691.24-20,539.96-4,331.84

Finding the Fourth Proportional to 13,691.24, 20,539.96 and 4,331.84

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Solution

The fourth proportional to 13,691.24, 20,539.96 and 4,331.84 is: 6,498.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,691.24 : 20,539.96 = 4,331.84 : x
  2. Step 2: Convert to fraction form
    13,691.24/20,539.96 = 4,331.84/x
  3. Step 3: Cross multiply
    13,691.24x = 20,539.96 × 4,331.84
  4. Step 4: Simplify right side
    13,691.24x = 88,975,820.33
  5. Step 5: Solve for x
    x = 88,975,820.33/13,691.24
  6. Step 6: Final answer
    x = 6,498.74

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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.