Home / 8,143.62-12,215.55-2,596.95

Finding the Fourth Proportional to 8,143.62, 12,215.55 and 2,596.95

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Solution

The fourth proportional to 8,143.62, 12,215.55 and 2,596.95 is: 3,895.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143.62 : 12,215.55 = 2,596.95 : x
  2. Step 2: Convert to fraction form
    8,143.62/12,215.55 = 2,596.95/x
  3. Step 3: Cross multiply
    8,143.62x = 12,215.55 × 2,596.95
  4. Step 4: Simplify right side
    8,143.62x = 31,723,172.57
  5. Step 5: Solve for x
    x = 31,723,172.57/8,143.62
  6. Step 6: Final answer
    x = 3,895.46

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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.