Home / 8,559.05-12,839.94-2,715.21

Finding the Fourth Proportional to 8,559.05, 12,839.94 and 2,715.21

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Solution

The fourth proportional to 8,559.05, 12,839.94 and 2,715.21 is: 4,073.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.05 : 12,839.94 = 2,715.21 : x
  2. Step 2: Convert to fraction form
    8,559.05/12,839.94 = 2,715.21/x
  3. Step 3: Cross multiply
    8,559.05x = 12,839.94 × 2,715.21
  4. Step 4: Simplify right side
    8,559.05x = 34,863,133.49
  5. Step 5: Solve for x
    x = 34,863,133.49/8,559.05
  6. Step 6: Final answer
    x = 4,073.25

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1.5x scale

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.