Home / 15,825.49-21,839.31-8,752.03

Finding the Fourth Proportional to 15,825.49, 21,839.31 and 8,752.03

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Solution

The fourth proportional to 15,825.49, 21,839.31 and 8,752.03 is: 12,077.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,825.49 : 21,839.31 = 8,752.03 : x
  2. Step 2: Convert to fraction form
    15,825.49/21,839.31 = 8,752.03/x
  3. Step 3: Cross multiply
    15,825.49x = 21,839.31 × 8,752.03
  4. Step 4: Simplify right side
    15,825.49x = 191,138,187.10
  5. Step 5: Solve for x
    x = 191,138,187.10/15,825.49
  6. Step 6: Final answer
    x = 12,077.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.