Home / 13,963.72-20,943.96-5,197.66

Finding the Fourth Proportional to 13,963.72, 20,943.96 and 5,197.66

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Solution

The fourth proportional to 13,963.72, 20,943.96 and 5,197.66 is: 7,795.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,963.72 : 20,943.96 = 5,197.66 : x
  2. Step 2: Convert to fraction form
    13,963.72/20,943.96 = 5,197.66/x
  3. Step 3: Cross multiply
    13,963.72x = 20,943.96 × 5,197.66
  4. Step 4: Simplify right side
    13,963.72x = 108,859,583.13
  5. Step 5: Solve for x
    x = 108,859,583.13/13,963.72
  6. Step 6: Final answer
    x = 7,795.89

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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.