Home / 11,721.74-17,594.78-7,853.18

Finding the Fourth Proportional to 11,721.74, 17,594.78 and 7,853.18

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Solution

The fourth proportional to 11,721.74, 17,594.78 and 7,853.18 is: 11,787.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.74 : 17,594.78 = 7,853.18 : x
  2. Step 2: Convert to fraction form
    11,721.74/17,594.78 = 7,853.18/x
  3. Step 3: Cross multiply
    11,721.74x = 17,594.78 × 7,853.18
  4. Step 4: Simplify right side
    11,721.74x = 138,174,847.16
  5. Step 5: Solve for x
    x = 138,174,847.16/11,721.74
  6. Step 6: Final answer
    x = 11,787.92

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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.