Home / 18,036.78-27,056.63-5,556.80

Finding the Fourth Proportional to 18,036.78, 27,056.63 and 5,556.80

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Solution

The fourth proportional to 18,036.78, 27,056.63 and 5,556.80 is: 8,335.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,036.78 : 27,056.63 = 5,556.80 : x
  2. Step 2: Convert to fraction form
    18,036.78/27,056.63 = 5,556.80/x
  3. Step 3: Cross multiply
    18,036.78x = 27,056.63 × 5,556.80
  4. Step 4: Simplify right side
    18,036.78x = 150,348,363.12
  5. Step 5: Solve for x
    x = 150,348,363.12/18,036.78
  6. Step 6: Final answer
    x = 8,335.66

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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.