Home / 10,443.91-15,665.45-3,424.45

Finding the Fourth Proportional to 10,443.91, 15,665.45 and 3,424.45

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Solution

The fourth proportional to 10,443.91, 15,665.45 and 3,424.45 is: 5,136.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,443.91 : 15,665.45 = 3,424.45 : x
  2. Step 2: Convert to fraction form
    10,443.91/15,665.45 = 3,424.45/x
  3. Step 3: Cross multiply
    10,443.91x = 15,665.45 × 3,424.45
  4. Step 4: Simplify right side
    10,443.91x = 53,645,550.25
  5. Step 5: Solve for x
    x = 53,645,550.25/10,443.91
  6. Step 6: Final answer
    x = 5,136.54

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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.