Home / 11,027.52-15,218.22-6,780.86

Finding the Fourth Proportional to 11,027.52, 15,218.22 and 6,780.86

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Solution

The fourth proportional to 11,027.52, 15,218.22 and 6,780.86 is: 9,357.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,027.52 : 15,218.22 = 6,780.86 : x
  2. Step 2: Convert to fraction form
    11,027.52/15,218.22 = 6,780.86/x
  3. Step 3: Cross multiply
    11,027.52x = 15,218.22 × 6,780.86
  4. Step 4: Simplify right side
    11,027.52x = 103,192,619.27
  5. Step 5: Solve for x
    x = 103,192,619.27/11,027.52
  6. Step 6: Final answer
    x = 9,357.74

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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.