Home / 13,761.47-20,635.69-5,331.92

Finding the Fourth Proportional to 13,761.47, 20,635.69 and 5,331.92

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Solution

The fourth proportional to 13,761.47, 20,635.69 and 5,331.92 is: 7,995.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,761.47 : 20,635.69 = 5,331.92 : x
  2. Step 2: Convert to fraction form
    13,761.47/20,635.69 = 5,331.92/x
  3. Step 3: Cross multiply
    13,761.47x = 20,635.69 × 5,331.92
  4. Step 4: Simplify right side
    13,761.47x = 110,027,731.72
  5. Step 5: Solve for x
    x = 110,027,731.72/13,761.47
  6. Step 6: Final answer
    x = 7,995.35

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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.