Home / 10,118.90-15,176.52-2,721.63

Finding the Fourth Proportional to 10,118.90, 15,176.52 and 2,721.63

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Solution

The fourth proportional to 10,118.90, 15,176.52 and 2,721.63 is: 4,081.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,118.90 : 15,176.52 = 2,721.63 : x
  2. Step 2: Convert to fraction form
    10,118.90/15,176.52 = 2,721.63/x
  3. Step 3: Cross multiply
    10,118.90x = 15,176.52 × 2,721.63
  4. Step 4: Simplify right side
    10,118.90x = 41,304,872.13
  5. Step 5: Solve for x
    x = 41,304,872.13/10,118.90
  6. Step 6: Final answer
    x = 4,081.95

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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.