Home / 6,651.38-9,178.12-3,818.62

Finding the Fourth Proportional to 6,651.38, 9,178.12 and 3,818.62

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Solution

The fourth proportional to 6,651.38, 9,178.12 and 3,818.62 is: 5,269.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651.38 : 9,178.12 = 3,818.62 : x
  2. Step 2: Convert to fraction form
    6,651.38/9,178.12 = 3,818.62/x
  3. Step 3: Cross multiply
    6,651.38x = 9,178.12 × 3,818.62
  4. Step 4: Simplify right side
    6,651.38x = 35,047,752.59
  5. Step 5: Solve for x
    x = 35,047,752.59/6,651.38
  6. Step 6: Final answer
    x = 5,269.25

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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.