Home / 8,559.09-12,839.30-2,715.75

Finding the Fourth Proportional to 8,559.09, 12,839.30 and 2,715.75

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Solution

The fourth proportional to 8,559.09, 12,839.30 and 2,715.75 is: 4,073.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.09 : 12,839.30 = 2,715.75 : x
  2. Step 2: Convert to fraction form
    8,559.09/12,839.30 = 2,715.75/x
  3. Step 3: Cross multiply
    8,559.09x = 12,839.30 × 2,715.75
  4. Step 4: Simplify right side
    8,559.09x = 34,868,328.98
  5. Step 5: Solve for x
    x = 34,868,328.98/8,559.09
  6. Step 6: Final answer
    x = 4,073.84

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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.