Home / 18,540.18-27,806.61-8,676.81

Finding the Fourth Proportional to 18,540.18, 27,806.61 and 8,676.81

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Solution

The fourth proportional to 18,540.18, 27,806.61 and 8,676.81 is: 13,013.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.18 : 27,806.61 = 8,676.81 : x
  2. Step 2: Convert to fraction form
    18,540.18/27,806.61 = 8,676.81/x
  3. Step 3: Cross multiply
    18,540.18x = 27,806.61 × 8,676.81
  4. Step 4: Simplify right side
    18,540.18x = 241,272,671.71
  5. Step 5: Solve for x
    x = 241,272,671.71/18,540.18
  6. Step 6: Final answer
    x = 13,013.50

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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.