Home / 8,719.97-13,072.56-3,785.87

Finding the Fourth Proportional to 8,719.97, 13,072.56 and 3,785.87

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Solution

The fourth proportional to 8,719.97, 13,072.56 and 3,785.87 is: 5,675.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.97 : 13,072.56 = 3,785.87 : x
  2. Step 2: Convert to fraction form
    8,719.97/13,072.56 = 3,785.87/x
  3. Step 3: Cross multiply
    8,719.97x = 13,072.56 × 3,785.87
  4. Step 4: Simplify right side
    8,719.97x = 49,490,947.36
  5. Step 5: Solve for x
    x = 49,490,947.36/8,719.97
  6. Step 6: Final answer
    x = 5,675.59

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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.