Home / 18,397.11-27,600.42-5,918.91

Finding the Fourth Proportional to 18,397.11, 27,600.42 and 5,918.91

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Solution

The fourth proportional to 18,397.11, 27,600.42 and 5,918.91 is: 8,879.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,397.11 : 27,600.42 = 5,918.91 : x
  2. Step 2: Convert to fraction form
    18,397.11/27,600.42 = 5,918.91/x
  3. Step 3: Cross multiply
    18,397.11x = 27,600.42 × 5,918.91
  4. Step 4: Simplify right side
    18,397.11x = 163,364,401.94
  5. Step 5: Solve for x
    x = 163,364,401.94/18,397.11
  6. Step 6: Final answer
    x = 8,879.89

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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.