Home / 10,249.05-15,371.42-4,981.80

Finding the Fourth Proportional to 10,249.05, 15,371.42 and 4,981.80

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Solution

The fourth proportional to 10,249.05, 15,371.42 and 4,981.80 is: 7,471.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,249.05 : 15,371.42 = 4,981.80 : x
  2. Step 2: Convert to fraction form
    10,249.05/15,371.42 = 4,981.80/x
  3. Step 3: Cross multiply
    10,249.05x = 15,371.42 × 4,981.80
  4. Step 4: Simplify right side
    10,249.05x = 76,577,315.25
  5. Step 5: Solve for x
    x = 76,577,315.25/10,249.05
  6. Step 6: Final answer
    x = 7,471.65

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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.