Home / 13,326.92-19,986.60-3,966.56

Finding the Fourth Proportional to 13,326.92, 19,986.60 and 3,966.56

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Solution

The fourth proportional to 13,326.92, 19,986.60 and 3,966.56 is: 5,948.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.92 : 19,986.60 = 3,966.56 : x
  2. Step 2: Convert to fraction form
    13,326.92/19,986.60 = 3,966.56/x
  3. Step 3: Cross multiply
    13,326.92x = 19,986.60 × 3,966.56
  4. Step 4: Simplify right side
    13,326.92x = 79,278,048.10
  5. Step 5: Solve for x
    x = 79,278,048.10/13,326.92
  6. Step 6: Final answer
    x = 5,948.71

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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.