Home / 10,358.86-15,542.39-3,785.56

Finding the Fourth Proportional to 10,358.86, 15,542.39 and 3,785.56

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Solution

The fourth proportional to 10,358.86, 15,542.39 and 3,785.56 is: 5,679.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,358.86 : 15,542.39 = 3,785.56 : x
  2. Step 2: Convert to fraction form
    10,358.86/15,542.39 = 3,785.56/x
  3. Step 3: Cross multiply
    10,358.86x = 15,542.39 × 3,785.56
  4. Step 4: Simplify right side
    10,358.86x = 58,836,669.53
  5. Step 5: Solve for x
    x = 58,836,669.53/10,358.86
  6. Step 6: Final answer
    x = 5,679.84

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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.