Home / 13,650.14-20,471.42-3,788.66

Finding the Fourth Proportional to 13,650.14, 20,471.42 and 3,788.66

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Solution

The fourth proportional to 13,650.14, 20,471.42 and 3,788.66 is: 5,681.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.14 : 20,471.42 = 3,788.66 : x
  2. Step 2: Convert to fraction form
    13,650.14/20,471.42 = 3,788.66/x
  3. Step 3: Cross multiply
    13,650.14x = 20,471.42 × 3,788.66
  4. Step 4: Simplify right side
    13,650.14x = 77,559,250.10
  5. Step 5: Solve for x
    x = 77,559,250.10/13,650.14
  6. Step 6: Final answer
    x = 5,681.94

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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.