Home / 10,639.66-15,961.12-3,712.54

Finding the Fourth Proportional to 10,639.66, 15,961.12 and 3,712.54

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Solution

The fourth proportional to 10,639.66, 15,961.12 and 3,712.54 is: 5,569.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.66 : 15,961.12 = 3,712.54 : x
  2. Step 2: Convert to fraction form
    10,639.66/15,961.12 = 3,712.54/x
  3. Step 3: Cross multiply
    10,639.66x = 15,961.12 × 3,712.54
  4. Step 4: Simplify right side
    10,639.66x = 59,256,296.44
  5. Step 5: Solve for x
    x = 59,256,296.44/10,639.66
  6. Step 6: Final answer
    x = 5,569.38

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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.