Home / 11,818.64-17,721.68-3,497.51

Finding the Fourth Proportional to 11,818.64, 17,721.68 and 3,497.51

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Solution

The fourth proportional to 11,818.64, 17,721.68 and 3,497.51 is: 5,244.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.64 : 17,721.68 = 3,497.51 : x
  2. Step 2: Convert to fraction form
    11,818.64/17,721.68 = 3,497.51/x
  3. Step 3: Cross multiply
    11,818.64x = 17,721.68 × 3,497.51
  4. Step 4: Simplify right side
    11,818.64x = 61,981,753.02
  5. Step 5: Solve for x
    x = 61,981,753.02/11,818.64
  6. Step 6: Final answer
    x = 5,244.41

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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.