Home / 18,731.88-28,093.50-7,046.28

Finding the Fourth Proportional to 18,731.88, 28,093.50 and 7,046.28

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Solution

The fourth proportional to 18,731.88, 28,093.50 and 7,046.28 is: 10,567.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731.88 : 28,093.50 = 7,046.28 : x
  2. Step 2: Convert to fraction form
    18,731.88/28,093.50 = 7,046.28/x
  3. Step 3: Cross multiply
    18,731.88x = 28,093.50 × 7,046.28
  4. Step 4: Simplify right side
    18,731.88x = 197,954,667.18
  5. Step 5: Solve for x
    x = 197,954,667.18/18,731.88
  6. Step 6: Final answer
    x = 10,567.79

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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.