Home / 13,617.10-18,793.79-12,727.72

Finding the Fourth Proportional to 13,617.10, 18,793.79 and 12,727.72

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Solution

The fourth proportional to 13,617.10, 18,793.79 and 12,727.72 is: 17,566.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617.10 : 18,793.79 = 12,727.72 : x
  2. Step 2: Convert to fraction form
    13,617.10/18,793.79 = 12,727.72/x
  3. Step 3: Cross multiply
    13,617.10x = 18,793.79 × 12,727.72
  4. Step 4: Simplify right side
    13,617.10x = 239,202,096.86
  5. Step 5: Solve for x
    x = 239,202,096.86/13,617.10
  6. Step 6: Final answer
    x = 17,566.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.