Home / 6,651.35-9,178.55-3,816.75

Finding the Fourth Proportional to 6,651.35, 9,178.55 and 3,816.75

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Solution

The fourth proportional to 6,651.35, 9,178.55 and 3,816.75 is: 5,266.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651.35 : 9,178.55 = 3,816.75 : x
  2. Step 2: Convert to fraction form
    6,651.35/9,178.55 = 3,816.75/x
  3. Step 3: Cross multiply
    6,651.35x = 9,178.55 × 3,816.75
  4. Step 4: Simplify right side
    6,651.35x = 35,032,260.36
  5. Step 5: Solve for x
    x = 35,032,260.36/6,651.35
  6. Step 6: Final answer
    x = 5,266.94

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Half scale
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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.