Home / 15,040.89-20,754.66-8,325.57

Finding the Fourth Proportional to 15,040.89, 20,754.66 and 8,325.57

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Solution

The fourth proportional to 15,040.89, 20,754.66 and 8,325.57 is: 11,488.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,040.89 : 20,754.66 = 8,325.57 : x
  2. Step 2: Convert to fraction form
    15,040.89/20,754.66 = 8,325.57/x
  3. Step 3: Cross multiply
    15,040.89x = 20,754.66 × 8,325.57
  4. Step 4: Simplify right side
    15,040.89x = 172,794,374.66
  5. Step 5: Solve for x
    x = 172,794,374.66/15,040.89
  6. Step 6: Final answer
    x = 11,488.31

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1.5x scale

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.