Home / 18,997.42-26,179.40-13,682.20

Finding the Fourth Proportional to 18,997.42, 26,179.40 and 13,682.20

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Solution

The fourth proportional to 18,997.42, 26,179.40 and 13,682.20 is: 18,854.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,997.42 : 26,179.40 = 13,682.20 : x
  2. Step 2: Convert to fraction form
    18,997.42/26,179.40 = 13,682.20/x
  3. Step 3: Cross multiply
    18,997.42x = 26,179.40 × 13,682.20
  4. Step 4: Simplify right side
    18,997.42x = 358,191,786.68
  5. Step 5: Solve for x
    x = 358,191,786.68/18,997.42
  6. Step 6: Final answer
    x = 18,854.76

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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.