Home / 7,767.72-10,717.38-4,974.84

Finding the Fourth Proportional to 7,767.72, 10,717.38 and 4,974.84

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Solution

The fourth proportional to 7,767.72, 10,717.38 and 4,974.84 is: 6,863.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,767.72 : 10,717.38 = 4,974.84 : x
  2. Step 2: Convert to fraction form
    7,767.72/10,717.38 = 4,974.84/x
  3. Step 3: Cross multiply
    7,767.72x = 10,717.38 × 4,974.84
  4. Step 4: Simplify right side
    7,767.72x = 53,317,250.72
  5. Step 5: Solve for x
    x = 53,317,250.72/7,767.72
  6. Step 6: Final answer
    x = 6,863.95

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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.