Home / 18,327.68-27,456.14-10,938.05

Finding the Fourth Proportional to 18,327.68, 27,456.14 and 10,938.05

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Solution

The fourth proportional to 18,327.68, 27,456.14 and 10,938.05 is: 16,385.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,327.68 : 27,456.14 = 10,938.05 : x
  2. Step 2: Convert to fraction form
    18,327.68/27,456.14 = 10,938.05/x
  3. Step 3: Cross multiply
    18,327.68x = 27,456.14 × 10,938.05
  4. Step 4: Simplify right side
    18,327.68x = 300,316,632.13
  5. Step 5: Solve for x
    x = 300,316,632.13/18,327.68
  6. Step 6: Final answer
    x = 16,385.96

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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.