Home / 19,278.38-26,604.78-12,568.34

Finding the Fourth Proportional to 19,278.38, 26,604.78 and 12,568.34

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Solution

The fourth proportional to 19,278.38, 26,604.78 and 12,568.34 is: 17,344.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.38 : 26,604.78 = 12,568.34 : x
  2. Step 2: Convert to fraction form
    19,278.38/26,604.78 = 12,568.34/x
  3. Step 3: Cross multiply
    19,278.38x = 26,604.78 × 12,568.34
  4. Step 4: Simplify right side
    19,278.38x = 334,377,920.67
  5. Step 5: Solve for x
    x = 334,377,920.67/19,278.38
  6. Step 6: Final answer
    x = 17,344.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.