Home / 19,964.47-27,550.54-11,012.80

Finding the Fourth Proportional to 19,964.47, 27,550.54 and 11,012.80

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Solution

The fourth proportional to 19,964.47, 27,550.54 and 11,012.80 is: 15,197.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,964.47 : 27,550.54 = 11,012.80 : x
  2. Step 2: Convert to fraction form
    19,964.47/27,550.54 = 11,012.80/x
  3. Step 3: Cross multiply
    19,964.47x = 27,550.54 × 11,012.80
  4. Step 4: Simplify right side
    19,964.47x = 303,408,586.91
  5. Step 5: Solve for x
    x = 303,408,586.91/19,964.47
  6. Step 6: Final answer
    x = 15,197.43

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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.