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Finding the Fourth Proportional to 12,794.42, 17,651.62 and 7,755.01

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Solution

The fourth proportional to 12,794.42, 17,651.62 and 7,755.01 is: 10,699.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,794.42 : 17,651.62 = 7,755.01 : x
  2. Step 2: Convert to fraction form
    12,794.42/17,651.62 = 7,755.01/x
  3. Step 3: Cross multiply
    12,794.42x = 17,651.62 × 7,755.01
  4. Step 4: Simplify right side
    12,794.42x = 136,888,455.18
  5. Step 5: Solve for x
    x = 136,888,455.18/12,794.42
  6. Step 6: Final answer
    x = 10,699.07

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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.