Home / 8,780.59-13,170.68-2,206.63

Finding the Fourth Proportional to 8,780.59, 13,170.68 and 2,206.63

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Solution

The fourth proportional to 8,780.59, 13,170.68 and 2,206.63 is: 3,309.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.59 : 13,170.68 = 2,206.63 : x
  2. Step 2: Convert to fraction form
    8,780.59/13,170.68 = 2,206.63/x
  3. Step 3: Cross multiply
    8,780.59x = 13,170.68 × 2,206.63
  4. Step 4: Simplify right side
    8,780.59x = 29,062,817.61
  5. Step 5: Solve for x
    x = 29,062,817.61/8,780.59
  6. Step 6: Final answer
    x = 3,309.89

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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.