Home / 11,717.20-17,553.93-7,824.34

Finding the Fourth Proportional to 11,717.20, 17,553.93 and 7,824.34

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Solution

The fourth proportional to 11,717.20, 17,553.93 and 7,824.34 is: 11,721.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,717.20 : 17,553.93 = 7,824.34 : x
  2. Step 2: Convert to fraction form
    11,717.20/17,553.93 = 7,824.34/x
  3. Step 3: Cross multiply
    11,717.20x = 17,553.93 × 7,824.34
  4. Step 4: Simplify right side
    11,717.20x = 137,347,916.66
  5. Step 5: Solve for x
    x = 137,347,916.66/11,717.20
  6. Step 6: Final answer
    x = 11,721.91

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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.