Home / 13,574.68-20,321.61-12,149.18

Finding the Fourth Proportional to 13,574.68, 20,321.61 and 12,149.18

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Solution

The fourth proportional to 13,574.68, 20,321.61 and 12,149.18 is: 18,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,574.68 : 20,321.61 = 12,149.18 : x
  2. Step 2: Convert to fraction form
    13,574.68/20,321.61 = 12,149.18/x
  3. Step 3: Cross multiply
    13,574.68x = 20,321.61 × 12,149.18
  4. Step 4: Simplify right side
    13,574.68x = 246,890,796.17
  5. Step 5: Solve for x
    x = 246,890,796.17/13,574.68
  6. Step 6: Final answer
    x = 18,187.60

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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.