Home / 10,288.78-15,424.14-4,949.26

Finding the Fourth Proportional to 10,288.78, 15,424.14 and 4,949.26

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Solution

The fourth proportional to 10,288.78, 15,424.14 and 4,949.26 is: 7,419.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,288.78 : 15,424.14 = 4,949.26 : x
  2. Step 2: Convert to fraction form
    10,288.78/15,424.14 = 4,949.26/x
  3. Step 3: Cross multiply
    10,288.78x = 15,424.14 × 4,949.26
  4. Step 4: Simplify right side
    10,288.78x = 76,338,079.14
  5. Step 5: Solve for x
    x = 76,338,079.14/10,288.78
  6. Step 6: Final answer
    x = 7,419.55

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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.