Home / 13,649.40-20,479.10-5,753.90

Finding the Fourth Proportional to 13,649.40, 20,479.10 and 5,753.90

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Solution

The fourth proportional to 13,649.40, 20,479.10 and 5,753.90 is: 8,632.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,649.40 : 20,479.10 = 5,753.90 : x
  2. Step 2: Convert to fraction form
    13,649.40/20,479.10 = 5,753.90/x
  3. Step 3: Cross multiply
    13,649.40x = 20,479.10 × 5,753.90
  4. Step 4: Simplify right side
    13,649.40x = 117,834,562.33
  5. Step 5: Solve for x
    x = 117,834,562.33/13,649.40
  6. Step 6: Final answer
    x = 8,632.95

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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.