Home / 18,286.60-27,430.92-5,137.94

Finding the Fourth Proportional to 18,286.60, 27,430.92 and 5,137.94

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Solution

The fourth proportional to 18,286.60, 27,430.92 and 5,137.94 is: 7,707.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,286.60 : 27,430.92 = 5,137.94 : x
  2. Step 2: Convert to fraction form
    18,286.60/27,430.92 = 5,137.94/x
  3. Step 3: Cross multiply
    18,286.60x = 27,430.92 × 5,137.94
  4. Step 4: Simplify right side
    18,286.60x = 140,938,421.10
  5. Step 5: Solve for x
    x = 140,938,421.10/18,286.60
  6. Step 6: Final answer
    x = 7,707.20

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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.