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Finding the Fourth Proportional to 8,809.48, 13,214.22 and 3,611.71

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Solution

The fourth proportional to 8,809.48, 13,214.22 and 3,611.71 is: 5,417.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.48 : 13,214.22 = 3,611.71 : x
  2. Step 2: Convert to fraction form
    8,809.48/13,214.22 = 3,611.71/x
  3. Step 3: Cross multiply
    8,809.48x = 13,214.22 × 3,611.71
  4. Step 4: Simplify right side
    8,809.48x = 47,725,930.52
  5. Step 5: Solve for x
    x = 47,725,930.52/8,809.48
  6. Step 6: Final answer
    x = 5,417.57

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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.