Home / 18,519.38-27,766.70-10,203.38

Finding the Fourth Proportional to 18,519.38, 27,766.70 and 10,203.38

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Solution

The fourth proportional to 18,519.38, 27,766.70 and 10,203.38 is: 15,298.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.38 : 27,766.70 = 10,203.38 : x
  2. Step 2: Convert to fraction form
    18,519.38/27,766.70 = 10,203.38/x
  3. Step 3: Cross multiply
    18,519.38x = 27,766.70 × 10,203.38
  4. Step 4: Simplify right side
    18,519.38x = 283,314,191.45
  5. Step 5: Solve for x
    x = 283,314,191.45/18,519.38
  6. Step 6: Final answer
    x = 15,298.25

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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.