Home / 12,892.62-17,791.47-7,587.75

Finding the Fourth Proportional to 12,892.62, 17,791.47 and 7,587.75

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Solution

The fourth proportional to 12,892.62, 17,791.47 and 7,587.75 is: 10,470.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892.62 : 17,791.47 = 7,587.75 : x
  2. Step 2: Convert to fraction form
    12,892.62/17,791.47 = 7,587.75/x
  3. Step 3: Cross multiply
    12,892.62x = 17,791.47 × 7,587.75
  4. Step 4: Simplify right side
    12,892.62x = 134,997,226.49
  5. Step 5: Solve for x
    x = 134,997,226.49/12,892.62
  6. Step 6: Final answer
    x = 10,470.89

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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.