Home / 18,180.31-25,086.91-10,112.65

Finding the Fourth Proportional to 18,180.31, 25,086.91 and 10,112.65

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Solution

The fourth proportional to 18,180.31, 25,086.91 and 10,112.65 is: 13,954.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,180.31 : 25,086.91 = 10,112.65 : x
  2. Step 2: Convert to fraction form
    18,180.31/25,086.91 = 10,112.65/x
  3. Step 3: Cross multiply
    18,180.31x = 25,086.91 × 10,112.65
  4. Step 4: Simplify right side
    18,180.31x = 253,695,212.49
  5. Step 5: Solve for x
    x = 253,695,212.49/18,180.31
  6. Step 6: Final answer
    x = 13,954.39

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1.5x scale

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.