Home / 13,649.11-20,469.31-5,327.10

Finding the Fourth Proportional to 13,649.11, 20,469.31 and 5,327.10

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Solution

The fourth proportional to 13,649.11, 20,469.31 and 5,327.10 is: 7,988.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,649.11 : 20,469.31 = 5,327.10 : x
  2. Step 2: Convert to fraction form
    13,649.11/20,469.31 = 5,327.10/x
  3. Step 3: Cross multiply
    13,649.11x = 20,469.31 × 5,327.10
  4. Step 4: Simplify right side
    13,649.11x = 109,042,047.98
  5. Step 5: Solve for x
    x = 109,042,047.98/13,649.11
  6. Step 6: Final answer
    x = 7,988.95

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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.