Home / 18,266.16-27,400.98-5,118.49

Finding the Fourth Proportional to 18,266.16, 27,400.98 and 5,118.49

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Solution

The fourth proportional to 18,266.16, 27,400.98 and 5,118.49 is: 7,678.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,266.16 : 27,400.98 = 5,118.49 : x
  2. Step 2: Convert to fraction form
    18,266.16/27,400.98 = 5,118.49/x
  3. Step 3: Cross multiply
    18,266.16x = 27,400.98 × 5,118.49
  4. Step 4: Simplify right side
    18,266.16x = 140,251,695.57
  5. Step 5: Solve for x
    x = 140,251,695.57/18,266.16
  6. Step 6: Final answer
    x = 7,678.23

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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.