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Finding the Fourth Proportional to 12,794.37, 17,656.20 and 7,490.19

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Solution

The fourth proportional to 12,794.37, 17,656.20 and 7,490.19 is: 10,336.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,794.37 : 17,656.20 = 7,490.19 : x
  2. Step 2: Convert to fraction form
    12,794.37/17,656.20 = 7,490.19/x
  3. Step 3: Cross multiply
    12,794.37x = 17,656.20 × 7,490.19
  4. Step 4: Simplify right side
    12,794.37x = 132,248,292.68
  5. Step 5: Solve for x
    x = 132,248,292.68/12,794.37
  6. Step 6: Final answer
    x = 10,336.44

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Half 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.