Home / 18,109.85-27,154.17-7,568.51

Finding the Fourth Proportional to 18,109.85, 27,154.17 and 7,568.51

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Solution

The fourth proportional to 18,109.85, 27,154.17 and 7,568.51 is: 11,348.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,109.85 : 27,154.17 = 7,568.51 : x
  2. Step 2: Convert to fraction form
    18,109.85/27,154.17 = 7,568.51/x
  3. Step 3: Cross multiply
    18,109.85x = 27,154.17 × 7,568.51
  4. Step 4: Simplify right side
    18,109.85x = 205,516,471.42
  5. Step 5: Solve for x
    x = 205,516,471.42/18,109.85
  6. Step 6: Final answer
    x = 11,348.33

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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.