Home / 12,718.40-19,081.33-5,696.87

Finding the Fourth Proportional to 12,718.40, 19,081.33 and 5,696.87

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Solution

The fourth proportional to 12,718.40, 19,081.33 and 5,696.87 is: 8,546.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,718.40 : 19,081.33 = 5,696.87 : x
  2. Step 2: Convert to fraction form
    12,718.40/19,081.33 = 5,696.87/x
  3. Step 3: Cross multiply
    12,718.40x = 19,081.33 × 5,696.87
  4. Step 4: Simplify right side
    12,718.40x = 108,703,746.79
  5. Step 5: Solve for x
    x = 108,703,746.79/12,718.40
  6. Step 6: Final answer
    x = 8,546.97

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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.