Home / 13,731.12-20,602.82-6,331.62

Finding the Fourth Proportional to 13,731.12, 20,602.82 and 6,331.62

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Solution

The fourth proportional to 13,731.12, 20,602.82 and 6,331.62 is: 9,500.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.12 : 20,602.82 = 6,331.62 : x
  2. Step 2: Convert to fraction form
    13,731.12/20,602.82 = 6,331.62/x
  3. Step 3: Cross multiply
    13,731.12x = 20,602.82 × 6,331.62
  4. Step 4: Simplify right side
    13,731.12x = 130,449,227.17
  5. Step 5: Solve for x
    x = 130,449,227.17/13,731.12
  6. Step 6: Final answer
    x = 9,500.26

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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.