Home / 13,081.92-19,595.79-6,398.30

Finding the Fourth Proportional to 13,081.92, 19,595.79 and 6,398.30

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Solution

The fourth proportional to 13,081.92, 19,595.79 and 6,398.30 is: 9,584.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.92 : 19,595.79 = 6,398.30 : x
  2. Step 2: Convert to fraction form
    13,081.92/19,595.79 = 6,398.30/x
  3. Step 3: Cross multiply
    13,081.92x = 19,595.79 × 6,398.30
  4. Step 4: Simplify right side
    13,081.92x = 125,379,645.18
  5. Step 5: Solve for x
    x = 125,379,645.18/13,081.92
  6. Step 6: Final answer
    x = 9,584.19

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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.