Home / 13,350.06-18,425.61-7,761.06

Finding the Fourth Proportional to 13,350.06, 18,425.61 and 7,761.06

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Solution

The fourth proportional to 13,350.06, 18,425.61 and 7,761.06 is: 10,711.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,350.06 : 18,425.61 = 7,761.06 : x
  2. Step 2: Convert to fraction form
    13,350.06/18,425.61 = 7,761.06/x
  3. Step 3: Cross multiply
    13,350.06x = 18,425.61 × 7,761.06
  4. Step 4: Simplify right side
    13,350.06x = 143,002,264.75
  5. Step 5: Solve for x
    x = 143,002,264.75/13,350.06
  6. Step 6: Final answer
    x = 10,711.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.