Home / 16,859.88-25,289.73-5,172.75

Finding the Fourth Proportional to 16,859.88, 25,289.73 and 5,172.75

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Solution

The fourth proportional to 16,859.88, 25,289.73 and 5,172.75 is: 7,759.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,859.88 : 25,289.73 = 5,172.75 : x
  2. Step 2: Convert to fraction form
    16,859.88/25,289.73 = 5,172.75/x
  3. Step 3: Cross multiply
    16,859.88x = 25,289.73 × 5,172.75
  4. Step 4: Simplify right side
    16,859.88x = 130,817,450.86
  5. Step 5: Solve for x
    x = 130,817,450.86/16,859.88
  6. Step 6: Final answer
    x = 7,759.10

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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.