Home / 26,286.84-39,408.06-12,239.70

Finding the Fourth Proportional to 26,286.84, 39,408.06 and 12,239.70

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Solution

The fourth proportional to 26,286.84, 39,408.06 and 12,239.70 is: 18,349.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,286.84 : 39,408.06 = 12,239.70 : x
  2. Step 2: Convert to fraction form
    26,286.84/39,408.06 = 12,239.70/x
  3. Step 3: Cross multiply
    26,286.84x = 39,408.06 × 12,239.70
  4. Step 4: Simplify right side
    26,286.84x = 482,342,831.98
  5. Step 5: Solve for x
    x = 482,342,831.98/26,286.84
  6. Step 6: Final answer
    x = 18,349.21

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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.