Home / 10,778.44-16,182.78-8,812.84

Finding the Fourth Proportional to 10,778.44, 16,182.78 and 8,812.84

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Solution

The fourth proportional to 10,778.44, 16,182.78 and 8,812.84 is: 13,231.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778.44 : 16,182.78 = 8,812.84 : x
  2. Step 2: Convert to fraction form
    10,778.44/16,182.78 = 8,812.84/x
  3. Step 3: Cross multiply
    10,778.44x = 16,182.78 × 8,812.84
  4. Step 4: Simplify right side
    10,778.44x = 142,616,250.90
  5. Step 5: Solve for x
    x = 142,616,250.90/10,778.44
  6. Step 6: Final answer
    x = 13,231.62

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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.