Home / 10,110.54-15,133.28-5,418.75

Finding the Fourth Proportional to 10,110.54, 15,133.28 and 5,418.75

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Solution

The fourth proportional to 10,110.54, 15,133.28 and 5,418.75 is: 8,110.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,110.54 : 15,133.28 = 5,418.75 : x
  2. Step 2: Convert to fraction form
    10,110.54/15,133.28 = 5,418.75/x
  3. Step 3: Cross multiply
    10,110.54x = 15,133.28 × 5,418.75
  4. Step 4: Simplify right side
    10,110.54x = 82,003,433.91
  5. Step 5: Solve for x
    x = 82,003,433.91/10,110.54
  6. Step 6: Final answer
    x = 8,110.69

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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.