Home / 8,780.85-13,173.48-6,188.85

Finding the Fourth Proportional to 8,780.85, 13,173.48 and 6,188.85

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Solution

The fourth proportional to 8,780.85, 13,173.48 and 6,188.85 is: 9,284.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.85 : 13,173.48 = 6,188.85 : x
  2. Step 2: Convert to fraction form
    8,780.85/13,173.48 = 6,188.85/x
  3. Step 3: Cross multiply
    8,780.85x = 13,173.48 × 6,188.85
  4. Step 4: Simplify right side
    8,780.85x = 81,528,691.70
  5. Step 5: Solve for x
    x = 81,528,691.70/8,780.85
  6. Step 6: Final answer
    x = 9,284.83

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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.