Home / 11,159.19-15,400.40-7,375.73

Finding the Fourth Proportional to 11,159.19, 15,400.40 and 7,375.73

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Solution

The fourth proportional to 11,159.19, 15,400.40 and 7,375.73 is: 10,178.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,159.19 : 15,400.40 = 7,375.73 : x
  2. Step 2: Convert to fraction form
    11,159.19/15,400.40 = 7,375.73/x
  3. Step 3: Cross multiply
    11,159.19x = 15,400.40 × 7,375.73
  4. Step 4: Simplify right side
    11,159.19x = 113,589,078.41
  5. Step 5: Solve for x
    x = 113,589,078.41/11,159.19
  6. Step 6: Final answer
    x = 10,178.97

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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.