Home / 10,248.64-15,382.06-5,321.68

Finding the Fourth Proportional to 10,248.64, 15,382.06 and 5,321.68

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Solution

The fourth proportional to 10,248.64, 15,382.06 and 5,321.68 is: 7,987.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,248.64 : 15,382.06 = 5,321.68 : x
  2. Step 2: Convert to fraction form
    10,248.64/15,382.06 = 5,321.68/x
  3. Step 3: Cross multiply
    10,248.64x = 15,382.06 × 5,321.68
  4. Step 4: Simplify right side
    10,248.64x = 81,858,401.06
  5. Step 5: Solve for x
    x = 81,858,401.06/10,248.64
  6. Step 6: Final answer
    x = 7,987.25

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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.