Home / 7,626.36-11,439.54-3,240.75

Finding the Fourth Proportional to 7,626.36, 11,439.54 and 3,240.75

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Solution

The fourth proportional to 7,626.36, 11,439.54 and 3,240.75 is: 4,861.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,626.36 : 11,439.54 = 3,240.75 : x
  2. Step 2: Convert to fraction form
    7,626.36/11,439.54 = 3,240.75/x
  3. Step 3: Cross multiply
    7,626.36x = 11,439.54 × 3,240.75
  4. Step 4: Simplify right side
    7,626.36x = 37,072,689.26
  5. Step 5: Solve for x
    x = 37,072,689.26/7,626.36
  6. Step 6: Final answer
    x = 4,861.13

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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.