Home / 18,045.47-27,073.56-8,682.78

Finding the Fourth Proportional to 18,045.47, 27,073.56 and 8,682.78

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Solution

The fourth proportional to 18,045.47, 27,073.56 and 8,682.78 is: 13,026.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,045.47 : 27,073.56 = 8,682.78 : x
  2. Step 2: Convert to fraction form
    18,045.47/27,073.56 = 8,682.78/x
  3. Step 3: Cross multiply
    18,045.47x = 27,073.56 × 8,682.78
  4. Step 4: Simplify right side
    18,045.47x = 235,073,765.30
  5. Step 5: Solve for x
    x = 235,073,765.30/18,045.47
  6. Step 6: Final answer
    x = 13,026.75

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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.