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Finding the Fourth Proportional to 6,910.84, 10,427.83 and 6,640.84

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Solution

The fourth proportional to 6,910.84, 10,427.83 and 6,640.84 is: 10,020.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,910.84 : 10,427.83 = 6,640.84 : x
  2. Step 2: Convert to fraction form
    6,910.84/10,427.83 = 6,640.84/x
  3. Step 3: Cross multiply
    6,910.84x = 10,427.83 × 6,640.84
  4. Step 4: Simplify right side
    6,910.84x = 69,249,550.58
  5. Step 5: Solve for x
    x = 69,249,550.58/6,910.84
  6. Step 6: Final answer
    x = 10,020.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.