Home / 10,440.73-15,661.71-3,421.48

Finding the Fourth Proportional to 10,440.73, 15,661.71 and 3,421.48

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Solution

The fourth proportional to 10,440.73, 15,661.71 and 3,421.48 is: 5,132.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,440.73 : 15,661.71 = 3,421.48 : x
  2. Step 2: Convert to fraction form
    10,440.73/15,661.71 = 3,421.48/x
  3. Step 3: Cross multiply
    10,440.73x = 15,661.71 × 3,421.48
  4. Step 4: Simplify right side
    10,440.73x = 53,586,227.53
  5. Step 5: Solve for x
    x = 53,586,227.53/10,440.73
  6. Step 6: Final answer
    x = 5,132.42

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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.