Home / 11,309.08-15,614.32-8,651.86

Finding the Fourth Proportional to 11,309.08, 15,614.32 and 8,651.86

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Solution

The fourth proportional to 11,309.08, 15,614.32 and 8,651.86 is: 11,945.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,309.08 : 15,614.32 = 8,651.86 : x
  2. Step 2: Convert to fraction form
    11,309.08/15,614.32 = 8,651.86/x
  3. Step 3: Cross multiply
    11,309.08x = 15,614.32 × 8,651.86
  4. Step 4: Simplify right side
    11,309.08x = 135,092,910.64
  5. Step 5: Solve for x
    x = 135,092,910.64/11,309.08
  6. Step 6: Final answer
    x = 11,945.53

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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.