Home / 13,350.75-18,425.66-7,761.75

Finding the Fourth Proportional to 13,350.75, 18,425.66 and 7,761.75

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Solution

The fourth proportional to 13,350.75, 18,425.66 and 7,761.75 is: 10,712.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,350.75 : 18,425.66 = 7,761.75 : x
  2. Step 2: Convert to fraction form
    13,350.75/18,425.66 = 7,761.75/x
  3. Step 3: Cross multiply
    13,350.75x = 18,425.66 × 7,761.75
  4. Step 4: Simplify right side
    13,350.75x = 143,015,327.70
  5. Step 5: Solve for x
    x = 143,015,327.70/13,350.75
  6. Step 6: Final answer
    x = 10,712.16

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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.