Home / 11,265.24-15,538.92-8,391.56

Finding the Fourth Proportional to 11,265.24, 15,538.92 and 8,391.56

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Solution

The fourth proportional to 11,265.24, 15,538.92 and 8,391.56 is: 11,575.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,265.24 : 15,538.92 = 8,391.56 : x
  2. Step 2: Convert to fraction form
    11,265.24/15,538.92 = 8,391.56/x
  3. Step 3: Cross multiply
    11,265.24x = 15,538.92 × 8,391.56
  4. Step 4: Simplify right side
    11,265.24x = 130,395,779.52
  5. Step 5: Solve for x
    x = 130,395,779.52/11,265.24
  6. Step 6: Final answer
    x = 11,575.06

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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.