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Finding the Fourth Proportional to 13,480.92, 18,602.33 and 8,175.42

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Solution

The fourth proportional to 13,480.92, 18,602.33 and 8,175.42 is: 11,281.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480.92 : 18,602.33 = 8,175.42 : x
  2. Step 2: Convert to fraction form
    13,480.92/18,602.33 = 8,175.42/x
  3. Step 3: Cross multiply
    13,480.92x = 18,602.33 × 8,175.42
  4. Step 4: Simplify right side
    13,480.92x = 152,081,819.85
  5. Step 5: Solve for x
    x = 152,081,819.85/13,480.92
  6. Step 6: Final answer
    x = 11,281.26

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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.