Home / 19,175.54-28,753.56-8,778.38

Finding the Fourth Proportional to 19,175.54, 28,753.56 and 8,778.38

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Solution

The fourth proportional to 19,175.54, 28,753.56 and 8,778.38 is: 13,163.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,175.54 : 28,753.56 = 8,778.38 : x
  2. Step 2: Convert to fraction form
    19,175.54/28,753.56 = 8,778.38/x
  3. Step 3: Cross multiply
    19,175.54x = 28,753.56 × 8,778.38
  4. Step 4: Simplify right side
    19,175.54x = 252,409,532.27
  5. Step 5: Solve for x
    x = 252,409,532.27/19,175.54
  6. Step 6: Final answer
    x = 13,163.10

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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.