Home / 12,791.04-17,654.40-7,825.92

Finding the Fourth Proportional to 12,791.04, 17,654.40 and 7,825.92

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Solution

The fourth proportional to 12,791.04, 17,654.40 and 7,825.92 is: 10,801.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791.04 : 17,654.40 = 7,825.92 : x
  2. Step 2: Convert to fraction form
    12,791.04/17,654.40 = 7,825.92/x
  3. Step 3: Cross multiply
    12,791.04x = 17,654.40 × 7,825.92
  4. Step 4: Simplify right side
    12,791.04x = 138,161,922.05
  5. Step 5: Solve for x
    x = 138,161,922.05/12,791.04
  6. Step 6: Final answer
    x = 10,801.46

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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.