Home / 12,791.57-19,187.40-4,471.55

Finding the Fourth Proportional to 12,791.57, 19,187.40 and 4,471.55

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Solution

The fourth proportional to 12,791.57, 19,187.40 and 4,471.55 is: 6,707.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791.57 : 19,187.40 = 4,471.55 : x
  2. Step 2: Convert to fraction form
    12,791.57/19,187.40 = 4,471.55/x
  3. Step 3: Cross multiply
    12,791.57x = 19,187.40 × 4,471.55
  4. Step 4: Simplify right side
    12,791.57x = 85,797,418.47
  5. Step 5: Solve for x
    x = 85,797,418.47/12,791.57
  6. Step 6: Final answer
    x = 6,707.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.