Home / 10,108.18-15,161.75-3,871.18

Finding the Fourth Proportional to 10,108.18, 15,161.75 and 3,871.18

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Solution

The fourth proportional to 10,108.18, 15,161.75 and 3,871.18 is: 5,806.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,108.18 : 15,161.75 = 3,871.18 : x
  2. Step 2: Convert to fraction form
    10,108.18/15,161.75 = 3,871.18/x
  3. Step 3: Cross multiply
    10,108.18x = 15,161.75 × 3,871.18
  4. Step 4: Simplify right side
    10,108.18x = 58,693,768.20
  5. Step 5: Solve for x
    x = 58,693,768.20/10,108.18
  6. Step 6: Final answer
    x = 5,806.56

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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.