Home / 11,388.24-15,691.32-8,238.96

Finding the Fourth Proportional to 11,388.24, 15,691.32 and 8,238.96

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Solution

The fourth proportional to 11,388.24, 15,691.32 and 8,238.96 is: 11,352.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388.24 : 15,691.32 = 8,238.96 : x
  2. Step 2: Convert to fraction form
    11,388.24/15,691.32 = 8,238.96/x
  3. Step 3: Cross multiply
    11,388.24x = 15,691.32 × 8,238.96
  4. Step 4: Simplify right side
    11,388.24x = 129,280,157.83
  5. Step 5: Solve for x
    x = 129,280,157.83/11,388.24
  6. Step 6: Final answer
    x = 11,352.08

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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.