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Finding the Fourth Proportional to 12,894.09, 17,793.68 and 7,305.09

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Solution

The fourth proportional to 12,894.09, 17,793.68 and 7,305.09 is: 10,080.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,894.09 : 17,793.68 = 7,305.09 : x
  2. Step 2: Convert to fraction form
    12,894.09/17,793.68 = 7,305.09/x
  3. Step 3: Cross multiply
    12,894.09x = 17,793.68 × 7,305.09
  4. Step 4: Simplify right side
    12,894.09x = 129,984,397.31
  5. Step 5: Solve for x
    x = 129,984,397.31/12,894.09
  6. Step 6: Final answer
    x = 10,080.93

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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.