Home / 14,433.12-21,649.68-3,489.12

Finding the Fourth Proportional to 14,433.12, 21,649.68 and 3,489.12

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Solution

The fourth proportional to 14,433.12, 21,649.68 and 3,489.12 is: 5,233.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,433.12 : 21,649.68 = 3,489.12 : x
  2. Step 2: Convert to fraction form
    14,433.12/21,649.68 = 3,489.12/x
  3. Step 3: Cross multiply
    14,433.12x = 21,649.68 × 3,489.12
  4. Step 4: Simplify right side
    14,433.12x = 75,538,331.48
  5. Step 5: Solve for x
    x = 75,538,331.48/14,433.12
  6. Step 6: Final answer
    x = 5,233.68

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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.