Home / 10,117.57-15,177.26-2,721.86

Finding the Fourth Proportional to 10,117.57, 15,177.26 and 2,721.86

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Solution

The fourth proportional to 10,117.57, 15,177.26 and 2,721.86 is: 4,083.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.57 : 15,177.26 = 2,721.86 : x
  2. Step 2: Convert to fraction form
    10,117.57/15,177.26 = 2,721.86/x
  3. Step 3: Cross multiply
    10,117.57x = 15,177.26 × 2,721.86
  4. Step 4: Simplify right side
    10,117.57x = 41,310,376.90
  5. Step 5: Solve for x
    x = 41,310,376.90/10,117.57
  6. Step 6: Final answer
    x = 4,083.03

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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.