Home / 12,717.09-19,081.40-5,696.36

Finding the Fourth Proportional to 12,717.09, 19,081.40 and 5,696.36

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Solution

The fourth proportional to 12,717.09, 19,081.40 and 5,696.36 is: 8,547.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,717.09 : 19,081.40 = 5,696.36 : x
  2. Step 2: Convert to fraction form
    12,717.09/19,081.40 = 5,696.36/x
  3. Step 3: Cross multiply
    12,717.09x = 19,081.40 × 5,696.36
  4. Step 4: Simplify right side
    12,717.09x = 108,694,399.82
  5. Step 5: Solve for x
    x = 108,694,399.82/12,717.09
  6. Step 6: Final answer
    x = 8,547.11

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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.