Home / 8,143.32-11,224.33-5,453.62

Finding the Fourth Proportional to 8,143.32, 11,224.33 and 5,453.62

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Solution

The fourth proportional to 8,143.32, 11,224.33 and 5,453.62 is: 7,516.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143.32 : 11,224.33 = 5,453.62 : x
  2. Step 2: Convert to fraction form
    8,143.32/11,224.33 = 5,453.62/x
  3. Step 3: Cross multiply
    8,143.32x = 11,224.33 × 5,453.62
  4. Step 4: Simplify right side
    8,143.32x = 61,213,230.57
  5. Step 5: Solve for x
    x = 61,213,230.57/8,143.32
  6. Step 6: Final answer
    x = 7,516.99

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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.