Home / 14,121.81-21,181.10-3,734.37

Finding the Fourth Proportional to 14,121.81, 21,181.10 and 3,734.37

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Solution

The fourth proportional to 14,121.81, 21,181.10 and 3,734.37 is: 5,601.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.81 : 21,181.10 = 3,734.37 : x
  2. Step 2: Convert to fraction form
    14,121.81/21,181.10 = 3,734.37/x
  3. Step 3: Cross multiply
    14,121.81x = 21,181.10 × 3,734.37
  4. Step 4: Simplify right side
    14,121.81x = 79,098,045.74
  5. Step 5: Solve for x
    x = 79,098,045.74/14,121.81
  6. Step 6: Final answer
    x = 5,601.13

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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.