Home / 10,040.20-15,062.70-5,110.60

Finding the Fourth Proportional to 10,040.20, 15,062.70 and 5,110.60

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Solution

The fourth proportional to 10,040.20, 15,062.70 and 5,110.60 is: 7,667.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,040.20 : 15,062.70 = 5,110.60 : x
  2. Step 2: Convert to fraction form
    10,040.20/15,062.70 = 5,110.60/x
  3. Step 3: Cross multiply
    10,040.20x = 15,062.70 × 5,110.60
  4. Step 4: Simplify right side
    10,040.20x = 76,979,434.62
  5. Step 5: Solve for x
    x = 76,979,434.62/10,040.20
  6. Step 6: Final answer
    x = 7,667.12

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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.