Home / 10,438.36-15,618.30-7,324.44

Finding the Fourth Proportional to 10,438.36, 15,618.30 and 7,324.44

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Solution

The fourth proportional to 10,438.36, 15,618.30 and 7,324.44 is: 10,959.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,438.36 : 15,618.30 = 7,324.44 : x
  2. Step 2: Convert to fraction form
    10,438.36/15,618.30 = 7,324.44/x
  3. Step 3: Cross multiply
    10,438.36x = 15,618.30 × 7,324.44
  4. Step 4: Simplify right side
    10,438.36x = 114,395,301.25
  5. Step 5: Solve for x
    x = 114,395,301.25/10,438.36
  6. Step 6: Final answer
    x = 10,959.13

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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.