Home / 10,491.39-15,743.34-3,922.29

Finding the Fourth Proportional to 10,491.39, 15,743.34 and 3,922.29

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Solution

The fourth proportional to 10,491.39, 15,743.34 and 3,922.29 is: 5,885.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,491.39 : 15,743.34 = 3,922.29 : x
  2. Step 2: Convert to fraction form
    10,491.39/15,743.34 = 3,922.29/x
  3. Step 3: Cross multiply
    10,491.39x = 15,743.34 × 3,922.29
  4. Step 4: Simplify right side
    10,491.39x = 61,749,945.05
  5. Step 5: Solve for x
    x = 61,749,945.05/10,491.39
  6. Step 6: Final answer
    x = 5,885.77

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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.