Home / 7,680.42-11,522.39-3,299.13

Finding the Fourth Proportional to 7,680.42, 11,522.39 and 3,299.13

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Solution

The fourth proportional to 7,680.42, 11,522.39 and 3,299.13 is: 4,949.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.42 : 11,522.39 = 3,299.13 : x
  2. Step 2: Convert to fraction form
    7,680.42/11,522.39 = 3,299.13/x
  3. Step 3: Cross multiply
    7,680.42x = 11,522.39 × 3,299.13
  4. Step 4: Simplify right side
    7,680.42x = 38,013,846.03
  5. Step 5: Solve for x
    x = 38,013,846.03/7,680.42
  6. Step 6: Final answer
    x = 4,949.45

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.