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Finding the Fourth Proportional to 6,920.77, 10,367.16 and 5,257.84

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Solution

The fourth proportional to 6,920.77, 10,367.16 and 5,257.84 is: 7,876.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,920.77 : 10,367.16 = 5,257.84 : x
  2. Step 2: Convert to fraction form
    6,920.77/10,367.16 = 5,257.84/x
  3. Step 3: Cross multiply
    6,920.77x = 10,367.16 × 5,257.84
  4. Step 4: Simplify right side
    6,920.77x = 54,508,868.53
  5. Step 5: Solve for x
    x = 54,508,868.53/6,920.77
  6. Step 6: Final answer
    x = 7,876.13

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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.