Home / 13,532.40-20,347.96-12,449.83

Finding the Fourth Proportional to 13,532.40, 20,347.96 and 12,449.83

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Solution

The fourth proportional to 13,532.40, 20,347.96 and 12,449.83 is: 18,720.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,532.40 : 20,347.96 = 12,449.83 : x
  2. Step 2: Convert to fraction form
    13,532.40/20,347.96 = 12,449.83/x
  3. Step 3: Cross multiply
    13,532.40x = 20,347.96 × 12,449.83
  4. Step 4: Simplify right side
    13,532.40x = 253,328,642.85
  5. Step 5: Solve for x
    x = 253,328,642.85/13,532.40
  6. Step 6: Final answer
    x = 18,720.16

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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.