Home / 12,188.24-18,282.28-3,423.17

Finding the Fourth Proportional to 12,188.24, 18,282.28 and 3,423.17

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Solution

The fourth proportional to 12,188.24, 18,282.28 and 3,423.17 is: 5,134.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,188.24 : 18,282.28 = 3,423.17 : x
  2. Step 2: Convert to fraction form
    12,188.24/18,282.28 = 3,423.17/x
  3. Step 3: Cross multiply
    12,188.24x = 18,282.28 × 3,423.17
  4. Step 4: Simplify right side
    12,188.24x = 62,583,352.43
  5. Step 5: Solve for x
    x = 62,583,352.43/12,188.24
  6. Step 6: Final answer
    x = 5,134.73

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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.