Home / 11,540.33-15,929.61-6,761.78

Finding the Fourth Proportional to 11,540.33, 15,929.61 and 6,761.78

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Solution

The fourth proportional to 11,540.33, 15,929.61 and 6,761.78 is: 9,333.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,540.33 : 15,929.61 = 6,761.78 : x
  2. Step 2: Convert to fraction form
    11,540.33/15,929.61 = 6,761.78/x
  3. Step 3: Cross multiply
    11,540.33x = 15,929.61 × 6,761.78
  4. Step 4: Simplify right side
    11,540.33x = 107,712,518.31
  5. Step 5: Solve for x
    x = 107,712,518.31/11,540.33
  6. Step 6: Final answer
    x = 9,333.57

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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.