Home / 10,660.36-15,991.32-3,637.56

Finding the Fourth Proportional to 10,660.36, 15,991.32 and 3,637.56

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Solution

The fourth proportional to 10,660.36, 15,991.32 and 3,637.56 is: 5,456.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,660.36 : 15,991.32 = 3,637.56 : x
  2. Step 2: Convert to fraction form
    10,660.36/15,991.32 = 3,637.56/x
  3. Step 3: Cross multiply
    10,660.36x = 15,991.32 × 3,637.56
  4. Step 4: Simplify right side
    10,660.36x = 58,169,385.98
  5. Step 5: Solve for x
    x = 58,169,385.98/10,660.36
  6. Step 6: Final answer
    x = 5,456.61

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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.