Home / 8,780.82-13,181.52-6,933.18

Finding the Fourth Proportional to 8,780.82, 13,181.52 and 6,933.18

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Solution

The fourth proportional to 8,780.82, 13,181.52 and 6,933.18 is: 10,407.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.82 : 13,181.52 = 6,933.18 : x
  2. Step 2: Convert to fraction form
    8,780.82/13,181.52 = 6,933.18/x
  3. Step 3: Cross multiply
    8,780.82x = 13,181.52 × 6,933.18
  4. Step 4: Simplify right side
    8,780.82x = 91,389,850.83
  5. Step 5: Solve for x
    x = 91,389,850.83/8,780.82
  6. Step 6: Final answer
    x = 10,407.89

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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.