Home / 18,757.13-28,135.96-4,906.13

Finding the Fourth Proportional to 18,757.13, 28,135.96 and 4,906.13

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Solution

The fourth proportional to 18,757.13, 28,135.96 and 4,906.13 is: 7,359.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,757.13 : 28,135.96 = 4,906.13 : x
  2. Step 2: Convert to fraction form
    18,757.13/28,135.96 = 4,906.13/x
  3. Step 3: Cross multiply
    18,757.13x = 28,135.96 × 4,906.13
  4. Step 4: Simplify right side
    18,757.13x = 138,038,524.49
  5. Step 5: Solve for x
    x = 138,038,524.49/18,757.13
  6. Step 6: Final answer
    x = 7,359.26

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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.