Home / 13,380.24-20,089.80-9,881.04

Finding the Fourth Proportional to 13,380.24, 20,089.80 and 9,881.04

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Solution

The fourth proportional to 13,380.24, 20,089.80 and 9,881.04 is: 14,835.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.24 : 20,089.80 = 9,881.04 : x
  2. Step 2: Convert to fraction form
    13,380.24/20,089.80 = 9,881.04/x
  3. Step 3: Cross multiply
    13,380.24x = 20,089.80 × 9,881.04
  4. Step 4: Simplify right side
    13,380.24x = 198,508,117.39
  5. Step 5: Solve for x
    x = 198,508,117.39/13,380.24
  6. Step 6: Final answer
    x = 14,835.92

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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.