Home / 8,780.32-13,180.77-6,932.68

Finding the Fourth Proportional to 8,780.32, 13,180.77 and 6,932.68

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Solution

The fourth proportional to 8,780.32, 13,180.77 and 6,932.68 is: 10,407.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.32 : 13,180.77 = 6,932.68 : x
  2. Step 2: Convert to fraction form
    8,780.32/13,180.77 = 6,932.68/x
  3. Step 3: Cross multiply
    8,780.32x = 13,180.77 × 6,932.68
  4. Step 4: Simplify right side
    8,780.32x = 91,378,060.56
  5. Step 5: Solve for x
    x = 91,378,060.56/8,780.32
  6. Step 6: Final answer
    x = 10,407.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.