Home / 8,515.06-12,777.54-3,584.38

Finding the Fourth Proportional to 8,515.06, 12,777.54 and 3,584.38

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Solution

The fourth proportional to 8,515.06, 12,777.54 and 3,584.38 is: 5,378.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.06 : 12,777.54 = 3,584.38 : x
  2. Step 2: Convert to fraction form
    8,515.06/12,777.54 = 3,584.38/x
  3. Step 3: Cross multiply
    8,515.06x = 12,777.54 × 3,584.38
  4. Step 4: Simplify right side
    8,515.06x = 45,799,558.83
  5. Step 5: Solve for x
    x = 45,799,558.83/8,515.06
  6. Step 6: Final answer
    x = 5,378.65

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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.