Home / 18,135.67-25,027.68-10,178.50

Finding the Fourth Proportional to 18,135.67, 25,027.68 and 10,178.50

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Solution

The fourth proportional to 18,135.67, 25,027.68 and 10,178.50 is: 14,046.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,135.67 : 25,027.68 = 10,178.50 : x
  2. Step 2: Convert to fraction form
    18,135.67/25,027.68 = 10,178.50/x
  3. Step 3: Cross multiply
    18,135.67x = 25,027.68 × 10,178.50
  4. Step 4: Simplify right side
    18,135.67x = 254,744,240.88
  5. Step 5: Solve for x
    x = 254,744,240.88/18,135.67
  6. Step 6: Final answer
    x = 14,046.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.