Home / 6,678.92-9,217.60-4,161.24

Finding the Fourth Proportional to 6,678.92, 9,217.60 and 4,161.24

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Solution

The fourth proportional to 6,678.92, 9,217.60 and 4,161.24 is: 5,742.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,678.92 : 9,217.60 = 4,161.24 : x
  2. Step 2: Convert to fraction form
    6,678.92/9,217.60 = 4,161.24/x
  3. Step 3: Cross multiply
    6,678.92x = 9,217.60 × 4,161.24
  4. Step 4: Simplify right side
    6,678.92x = 38,356,635.42
  5. Step 5: Solve for x
    x = 38,356,635.42/6,678.92
  6. Step 6: Final answer
    x = 5,742.94

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Double scale
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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.