Home / 9,872.28-13,625.01-5,680.53

Finding the Fourth Proportional to 9,872.28, 13,625.01 and 5,680.53

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Solution

The fourth proportional to 9,872.28, 13,625.01 and 5,680.53 is: 7,839.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,872.28 : 13,625.01 = 5,680.53 : x
  2. Step 2: Convert to fraction form
    9,872.28/13,625.01 = 5,680.53/x
  3. Step 3: Cross multiply
    9,872.28x = 13,625.01 × 5,680.53
  4. Step 4: Simplify right side
    9,872.28x = 77,397,278.06
  5. Step 5: Solve for x
    x = 77,397,278.06/9,872.28
  6. Step 6: Final answer
    x = 7,839.86

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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.