Home / 12,929.90-19,391.09-5,906.18

Finding the Fourth Proportional to 12,929.90, 19,391.09 and 5,906.18

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Solution

The fourth proportional to 12,929.90, 19,391.09 and 5,906.18 is: 8,857.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929.90 : 19,391.09 = 5,906.18 : x
  2. Step 2: Convert to fraction form
    12,929.90/19,391.09 = 5,906.18/x
  3. Step 3: Cross multiply
    12,929.90x = 19,391.09 × 5,906.18
  4. Step 4: Simplify right side
    12,929.90x = 114,527,286.88
  5. Step 5: Solve for x
    x = 114,527,286.88/12,929.90
  6. Step 6: Final answer
    x = 8,857.56

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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.