Home / 13,182.75-19,774.13-3,948.75

Finding the Fourth Proportional to 13,182.75, 19,774.13 and 3,948.75

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Solution

The fourth proportional to 13,182.75, 19,774.13 and 3,948.75 is: 5,923.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,182.75 : 19,774.13 = 3,948.75 : x
  2. Step 2: Convert to fraction form
    13,182.75/19,774.13 = 3,948.75/x
  3. Step 3: Cross multiply
    13,182.75x = 19,774.13 × 3,948.75
  4. Step 4: Simplify right side
    13,182.75x = 78,083,076.09
  5. Step 5: Solve for x
    x = 78,083,076.09/13,182.75
  6. Step 6: Final answer
    x = 5,923.13

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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.