Home / 11,519.82-17,189.86-10,278.70

Finding the Fourth Proportional to 11,519.82, 17,189.86 and 10,278.70

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Solution

The fourth proportional to 11,519.82, 17,189.86 and 10,278.70 is: 15,337.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,519.82 : 17,189.86 = 10,278.70 : x
  2. Step 2: Convert to fraction form
    11,519.82/17,189.86 = 10,278.70/x
  3. Step 3: Cross multiply
    11,519.82x = 17,189.86 × 10,278.70
  4. Step 4: Simplify right side
    11,519.82x = 176,689,413.98
  5. Step 5: Solve for x
    x = 176,689,413.98/11,519.82
  6. Step 6: Final answer
    x = 15,337.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.