Home / 19,759.55-29,647.33-8,660.39

Finding the Fourth Proportional to 19,759.55, 29,647.33 and 8,660.39

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Solution

The fourth proportional to 19,759.55, 29,647.33 and 8,660.39 is: 12,994.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,759.55 : 29,647.33 = 8,660.39 : x
  2. Step 2: Convert to fraction form
    19,759.55/29,647.33 = 8,660.39/x
  3. Step 3: Cross multiply
    19,759.55x = 29,647.33 × 8,660.39
  4. Step 4: Simplify right side
    19,759.55x = 256,757,440.26
  5. Step 5: Solve for x
    x = 256,757,440.26/19,759.55
  6. Step 6: Final answer
    x = 12,994.09

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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.