Home / 18,744.57-28,121.48-13,208.73

Finding the Fourth Proportional to 18,744.57, 28,121.48 and 13,208.73

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Solution

The fourth proportional to 18,744.57, 28,121.48 and 13,208.73 is: 19,816.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,744.57 : 28,121.48 = 13,208.73 : x
  2. Step 2: Convert to fraction form
    18,744.57/28,121.48 = 13,208.73/x
  3. Step 3: Cross multiply
    18,744.57x = 28,121.48 × 13,208.73
  4. Step 4: Simplify right side
    18,744.57x = 371,448,970.48
  5. Step 5: Solve for x
    x = 371,448,970.48/18,744.57
  6. Step 6: Final answer
    x = 19,816.35

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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.