Home / 18,135.88-27,177.90-10,328.56

Finding the Fourth Proportional to 18,135.88, 27,177.90 and 10,328.56

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Solution

The fourth proportional to 18,135.88, 27,177.90 and 10,328.56 is: 15,478.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,135.88 : 27,177.90 = 10,328.56 : x
  2. Step 2: Convert to fraction form
    18,135.88/27,177.90 = 10,328.56/x
  3. Step 3: Cross multiply
    18,135.88x = 27,177.90 × 10,328.56
  4. Step 4: Simplify right side
    18,135.88x = 280,708,570.82
  5. Step 5: Solve for x
    x = 280,708,570.82/18,135.88
  6. Step 6: Final answer
    x = 15,478.08

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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.