Home / 13,747.68-20,621.19-3,886.83

Finding the Fourth Proportional to 13,747.68, 20,621.19 and 3,886.83

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Solution

The fourth proportional to 13,747.68, 20,621.19 and 3,886.83 is: 5,830.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.68 : 20,621.19 = 3,886.83 : x
  2. Step 2: Convert to fraction form
    13,747.68/20,621.19 = 3,886.83/x
  3. Step 3: Cross multiply
    13,747.68x = 20,621.19 × 3,886.83
  4. Step 4: Simplify right side
    13,747.68x = 80,151,059.93
  5. Step 5: Solve for x
    x = 80,151,059.93/13,747.68
  6. Step 6: Final answer
    x = 5,830.15

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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.