Home / 11,040.72-15,229.26-7,258.02

Finding the Fourth Proportional to 11,040.72, 15,229.26 and 7,258.02

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Solution

The fourth proportional to 11,040.72, 15,229.26 and 7,258.02 is: 10,011.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,040.72 : 15,229.26 = 7,258.02 : x
  2. Step 2: Convert to fraction form
    11,040.72/15,229.26 = 7,258.02/x
  3. Step 3: Cross multiply
    11,040.72x = 15,229.26 × 7,258.02
  4. Step 4: Simplify right side
    11,040.72x = 110,534,273.67
  5. Step 5: Solve for x
    x = 110,534,273.67/11,040.72
  6. Step 6: Final answer
    x = 10,011.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.