Home / 13,731.40-20,553.90-10,793.80

Finding the Fourth Proportional to 13,731.40, 20,553.90 and 10,793.80

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Solution

The fourth proportional to 13,731.40, 20,553.90 and 10,793.80 is: 16,156.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.40 : 20,553.90 = 10,793.80 : x
  2. Step 2: Convert to fraction form
    13,731.40/20,553.90 = 10,793.80/x
  3. Step 3: Cross multiply
    13,731.40x = 20,553.90 × 10,793.80
  4. Step 4: Simplify right side
    13,731.40x = 221,854,685.82
  5. Step 5: Solve for x
    x = 221,854,685.82/13,731.40
  6. Step 6: Final answer
    x = 16,156.74

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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.