Home / 10,252.35-15,382.49-5,318.91

Finding the Fourth Proportional to 10,252.35, 15,382.49 and 5,318.91

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Solution

The fourth proportional to 10,252.35, 15,382.49 and 5,318.91 is: 7,980.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,252.35 : 15,382.49 = 5,318.91 : x
  2. Step 2: Convert to fraction form
    10,252.35/15,382.49 = 5,318.91/x
  3. Step 3: Cross multiply
    10,252.35x = 15,382.49 × 5,318.91
  4. Step 4: Simplify right side
    10,252.35x = 81,818,053.29
  5. Step 5: Solve for x
    x = 81,818,053.29/10,252.35
  6. Step 6: Final answer
    x = 7,980.42

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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.