Home / 9,195.09-13,781.78-3,928.56

Finding the Fourth Proportional to 9,195.09, 13,781.78 and 3,928.56

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Solution

The fourth proportional to 9,195.09, 13,781.78 and 3,928.56 is: 5,888.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,195.09 : 13,781.78 = 3,928.56 : x
  2. Step 2: Convert to fraction form
    9,195.09/13,781.78 = 3,928.56/x
  3. Step 3: Cross multiply
    9,195.09x = 13,781.78 × 3,928.56
  4. Step 4: Simplify right side
    9,195.09x = 54,142,549.64
  5. Step 5: Solve for x
    x = 54,142,549.64/9,195.09
  6. Step 6: Final answer
    x = 5,888.20

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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.