Home / 18,180.69-27,256.29-8,178.11

Finding the Fourth Proportional to 18,180.69, 27,256.29 and 8,178.11

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Solution

The fourth proportional to 18,180.69, 27,256.29 and 8,178.11 is: 12,260.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,180.69 : 27,256.29 = 8,178.11 : x
  2. Step 2: Convert to fraction form
    18,180.69/27,256.29 = 8,178.11/x
  3. Step 3: Cross multiply
    18,180.69x = 27,256.29 × 8,178.11
  4. Step 4: Simplify right side
    18,180.69x = 222,904,873.07
  5. Step 5: Solve for x
    x = 222,904,873.07/18,180.69
  6. Step 6: Final answer
    x = 12,260.53

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1.5x scale

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.