Home / 11,262.72-15,525.82-9,661.65

Finding the Fourth Proportional to 11,262.72, 15,525.82 and 9,661.65

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Solution

The fourth proportional to 11,262.72, 15,525.82 and 9,661.65 is: 13,318.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,262.72 : 15,525.82 = 9,661.65 : x
  2. Step 2: Convert to fraction form
    11,262.72/15,525.82 = 9,661.65/x
  3. Step 3: Cross multiply
    11,262.72x = 15,525.82 × 9,661.65
  4. Step 4: Simplify right side
    11,262.72x = 150,005,121.18
  5. Step 5: Solve for x
    x = 150,005,121.18/11,262.72
  6. Step 6: Final answer
    x = 13,318.73

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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.