Home / 7,226.12-9,971.68-4,082.76

Finding the Fourth Proportional to 7,226.12, 9,971.68 and 4,082.76

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Solution

The fourth proportional to 7,226.12, 9,971.68 and 4,082.76 is: 5,634.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,226.12 : 9,971.68 = 4,082.76 : x
  2. Step 2: Convert to fraction form
    7,226.12/9,971.68 = 4,082.76/x
  3. Step 3: Cross multiply
    7,226.12x = 9,971.68 × 4,082.76
  4. Step 4: Simplify right side
    7,226.12x = 40,711,976.24
  5. Step 5: Solve for x
    x = 40,711,976.24/7,226.12
  6. Step 6: Final answer
    x = 5,634.00

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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.