Home / 13,719.10-20,552.19-8,176.90

Finding the Fourth Proportional to 13,719.10, 20,552.19 and 8,176.90

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Solution

The fourth proportional to 13,719.10, 20,552.19 and 8,176.90 is: 12,249.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.10 : 20,552.19 = 8,176.90 : x
  2. Step 2: Convert to fraction form
    13,719.10/20,552.19 = 8,176.90/x
  3. Step 3: Cross multiply
    13,719.10x = 20,552.19 × 8,176.90
  4. Step 4: Simplify right side
    13,719.10x = 168,053,202.41
  5. Step 5: Solve for x
    x = 168,053,202.41/13,719.10
  6. Step 6: Final answer
    x = 12,249.58

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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.