Home / 12,949.91-19,430.33-7,694.96

Finding the Fourth Proportional to 12,949.91, 19,430.33 and 7,694.96

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Solution

The fourth proportional to 12,949.91, 19,430.33 and 7,694.96 is: 11,545.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949.91 : 19,430.33 = 7,694.96 : x
  2. Step 2: Convert to fraction form
    12,949.91/19,430.33 = 7,694.96/x
  3. Step 3: Cross multiply
    12,949.91x = 19,430.33 × 7,694.96
  4. Step 4: Simplify right side
    12,949.91x = 149,515,476.51
  5. Step 5: Solve for x
    x = 149,515,476.51/12,949.91
  6. Step 6: Final answer
    x = 11,545.68

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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.