Home / 18,944.80-28,421.30-7,258.02

Finding the Fourth Proportional to 18,944.80, 28,421.30 and 7,258.02

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Solution

The fourth proportional to 18,944.80, 28,421.30 and 7,258.02 is: 10,888.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,944.80 : 28,421.30 = 7,258.02 : x
  2. Step 2: Convert to fraction form
    18,944.80/28,421.30 = 7,258.02/x
  3. Step 3: Cross multiply
    18,944.80x = 28,421.30 × 7,258.02
  4. Step 4: Simplify right side
    18,944.80x = 206,282,185.43
  5. Step 5: Solve for x
    x = 206,282,185.43/18,944.80
  6. Step 6: Final answer
    x = 10,888.59

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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.