Home / 11,025.20-15,209.70-9,767.54

Finding the Fourth Proportional to 11,025.20, 15,209.70 and 9,767.54

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Solution

The fourth proportional to 11,025.20, 15,209.70 and 9,767.54 is: 13,474.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,025.20 : 15,209.70 = 9,767.54 : x
  2. Step 2: Convert to fraction form
    11,025.20/15,209.70 = 9,767.54/x
  3. Step 3: Cross multiply
    11,025.20x = 15,209.70 × 9,767.54
  4. Step 4: Simplify right side
    11,025.20x = 148,561,353.14
  5. Step 5: Solve for x
    x = 148,561,353.14/11,025.20
  6. Step 6: Final answer
    x = 13,474.71

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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.