Home / 10,424.39-15,638.31-3,402.36

Finding the Fourth Proportional to 10,424.39, 15,638.31 and 3,402.36

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Solution

The fourth proportional to 10,424.39, 15,638.31 and 3,402.36 is: 5,104.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,424.39 : 15,638.31 = 3,402.36 : x
  2. Step 2: Convert to fraction form
    10,424.39/15,638.31 = 3,402.36/x
  3. Step 3: Cross multiply
    10,424.39x = 15,638.31 × 3,402.36
  4. Step 4: Simplify right side
    10,424.39x = 53,207,160.41
  5. Step 5: Solve for x
    x = 53,207,160.41/10,424.39
  6. Step 6: Final answer
    x = 5,104.11

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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.