Home / 13,091.56-19,645.98-6,939.88

Finding the Fourth Proportional to 13,091.56, 19,645.98 and 6,939.88

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Solution

The fourth proportional to 13,091.56, 19,645.98 and 6,939.88 is: 10,414.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,091.56 : 19,645.98 = 6,939.88 : x
  2. Step 2: Convert to fraction form
    13,091.56/19,645.98 = 6,939.88/x
  3. Step 3: Cross multiply
    13,091.56x = 19,645.98 × 6,939.88
  4. Step 4: Simplify right side
    13,091.56x = 136,340,743.68
  5. Step 5: Solve for x
    x = 136,340,743.68/13,091.56
  6. Step 6: Final answer
    x = 10,414.40

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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.