Home / 12,578.94-18,855.18-4,251.06

Finding the Fourth Proportional to 12,578.94, 18,855.18 and 4,251.06

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Solution

The fourth proportional to 12,578.94, 18,855.18 and 4,251.06 is: 6,372.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,578.94 : 18,855.18 = 4,251.06 : x
  2. Step 2: Convert to fraction form
    12,578.94/18,855.18 = 4,251.06/x
  3. Step 3: Cross multiply
    12,578.94x = 18,855.18 × 4,251.06
  4. Step 4: Simplify right side
    12,578.94x = 80,154,501.49
  5. Step 5: Solve for x
    x = 80,154,501.49/12,578.94
  6. Step 6: Final answer
    x = 6,372.12

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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.