Home / 18,687.54-25,788.78-10,304.04

Finding the Fourth Proportional to 18,687.54, 25,788.78 and 10,304.04

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Solution

The fourth proportional to 18,687.54, 25,788.78 and 10,304.04 is: 14,219.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,687.54 : 25,788.78 = 10,304.04 : x
  2. Step 2: Convert to fraction form
    18,687.54/25,788.78 = 10,304.04/x
  3. Step 3: Cross multiply
    18,687.54x = 25,788.78 × 10,304.04
  4. Step 4: Simplify right side
    18,687.54x = 265,728,620.67
  5. Step 5: Solve for x
    x = 265,728,620.67/18,687.54
  6. Step 6: Final answer
    x = 14,219.56

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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.