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Finding the Fourth Proportional to 18,696.42, 28,037.34 and 7,003.26

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Solution

The fourth proportional to 18,696.42, 28,037.34 and 7,003.26 is: 10,502.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,696.42 : 28,037.34 = 7,003.26 : x
  2. Step 2: Convert to fraction form
    18,696.42/28,037.34 = 7,003.26/x
  3. Step 3: Cross multiply
    18,696.42x = 28,037.34 × 7,003.26
  4. Step 4: Simplify right side
    18,696.42x = 196,352,781.73
  5. Step 5: Solve for x
    x = 196,352,781.73/18,696.42
  6. Step 6: Final answer
    x = 10,502.16

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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.