Home / 12,981.82-19,458.06-6,394.18

Finding the Fourth Proportional to 12,981.82, 19,458.06 and 6,394.18

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Solution

The fourth proportional to 12,981.82, 19,458.06 and 6,394.18 is: 9,584.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,981.82 : 19,458.06 = 6,394.18 : x
  2. Step 2: Convert to fraction form
    12,981.82/19,458.06 = 6,394.18/x
  3. Step 3: Cross multiply
    12,981.82x = 19,458.06 × 6,394.18
  4. Step 4: Simplify right side
    12,981.82x = 124,418,338.09
  5. Step 5: Solve for x
    x = 124,418,338.09/12,981.82
  6. Step 6: Final answer
    x = 9,584.04

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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.