Home / 19,195.38-28,751.40-9,313.88

Finding the Fourth Proportional to 19,195.38, 28,751.40 and 9,313.88

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Solution

The fourth proportional to 19,195.38, 28,751.40 and 9,313.88 is: 13,950.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,195.38 : 28,751.40 = 9,313.88 : x
  2. Step 2: Convert to fraction form
    19,195.38/28,751.40 = 9,313.88/x
  3. Step 3: Cross multiply
    19,195.38x = 28,751.40 × 9,313.88
  4. Step 4: Simplify right side
    19,195.38x = 267,786,945.68
  5. Step 5: Solve for x
    x = 267,786,945.68/19,195.38
  6. Step 6: Final answer
    x = 13,950.59

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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.