Home / 18,605.12-27,911.51-6,125.88

Finding the Fourth Proportional to 18,605.12, 27,911.51 and 6,125.88

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Solution

The fourth proportional to 18,605.12, 27,911.51 and 6,125.88 is: 9,190.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,605.12 : 27,911.51 = 6,125.88 : x
  2. Step 2: Convert to fraction form
    18,605.12/27,911.51 = 6,125.88/x
  3. Step 3: Cross multiply
    18,605.12x = 27,911.51 × 6,125.88
  4. Step 4: Simplify right side
    18,605.12x = 170,982,530.25
  5. Step 5: Solve for x
    x = 170,982,530.25/18,605.12
  6. Step 6: Final answer
    x = 9,190.08

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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.