Home / 16,868.40-25,301.67-5,181.62

Finding the Fourth Proportional to 16,868.40, 25,301.67 and 5,181.62

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Solution

The fourth proportional to 16,868.40, 25,301.67 and 5,181.62 is: 7,772.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,868.40 : 25,301.67 = 5,181.62 : x
  2. Step 2: Convert to fraction form
    16,868.40/25,301.67 = 5,181.62/x
  3. Step 3: Cross multiply
    16,868.40x = 25,301.67 × 5,181.62
  4. Step 4: Simplify right side
    16,868.40x = 131,103,512.80
  5. Step 5: Solve for x
    x = 131,103,512.80/16,868.40
  6. Step 6: Final answer
    x = 7,772.14

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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.