Home / 13,841.32-20,750.46-5,516.20

Finding the Fourth Proportional to 13,841.32, 20,750.46 and 5,516.20

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Solution

The fourth proportional to 13,841.32, 20,750.46 and 5,516.20 is: 8,269.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,841.32 : 20,750.46 = 5,516.20 : x
  2. Step 2: Convert to fraction form
    13,841.32/20,750.46 = 5,516.20/x
  3. Step 3: Cross multiply
    13,841.32x = 20,750.46 × 5,516.20
  4. Step 4: Simplify right side
    13,841.32x = 114,463,687.45
  5. Step 5: Solve for x
    x = 114,463,687.45/13,841.32
  6. Step 6: Final answer
    x = 8,269.71

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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.