Home / 8,880.14-13,320.21-2,640.13

Finding the Fourth Proportional to 8,880.14, 13,320.21 and 2,640.13

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Solution

The fourth proportional to 8,880.14, 13,320.21 and 2,640.13 is: 3,960.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.14 : 13,320.21 = 2,640.13 : x
  2. Step 2: Convert to fraction form
    8,880.14/13,320.21 = 2,640.13/x
  3. Step 3: Cross multiply
    8,880.14x = 13,320.21 × 2,640.13
  4. Step 4: Simplify right side
    8,880.14x = 35,167,052.73
  5. Step 5: Solve for x
    x = 35,167,052.73/8,880.14
  6. Step 6: Final answer
    x = 3,960.19

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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.