Home / 12,791.57-19,200.45-10,563.31

Finding the Fourth Proportional to 12,791.57, 19,200.45 and 10,563.31

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Solution

The fourth proportional to 12,791.57, 19,200.45 and 10,563.31 is: 15,855.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791.57 : 19,200.45 = 10,563.31 : x
  2. Step 2: Convert to fraction form
    12,791.57/19,200.45 = 10,563.31/x
  3. Step 3: Cross multiply
    12,791.57x = 19,200.45 × 10,563.31
  4. Step 4: Simplify right side
    12,791.57x = 202,820,201.68
  5. Step 5: Solve for x
    x = 202,820,201.68/12,791.57
  6. Step 6: Final answer
    x = 15,855.77

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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.