Home / 11,540.79-15,917.97-11,154.87

Finding the Fourth Proportional to 11,540.79, 15,917.97 and 11,154.87

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Solution

The fourth proportional to 11,540.79, 15,917.97 and 11,154.87 is: 15,385.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,540.79 : 15,917.97 = 11,154.87 : x
  2. Step 2: Convert to fraction form
    11,540.79/15,917.97 = 11,154.87/x
  3. Step 3: Cross multiply
    11,540.79x = 15,917.97 × 11,154.87
  4. Step 4: Simplify right side
    11,540.79x = 177,562,886.01
  5. Step 5: Solve for x
    x = 177,562,886.01/11,540.79
  6. Step 6: Final answer
    x = 15,385.68

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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.