Home / 6,519.18-9,778.73-2,136.61

Finding the Fourth Proportional to 6,519.18, 9,778.73 and 2,136.61

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Solution

The fourth proportional to 6,519.18, 9,778.73 and 2,136.61 is: 3,204.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,519.18 : 9,778.73 = 2,136.61 : x
  2. Step 2: Convert to fraction form
    6,519.18/9,778.73 = 2,136.61/x
  3. Step 3: Cross multiply
    6,519.18x = 9,778.73 × 2,136.61
  4. Step 4: Simplify right side
    6,519.18x = 20,893,283.41
  5. Step 5: Solve for x
    x = 20,893,283.41/6,519.18
  6. Step 6: Final answer
    x = 3,204.89

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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.