Home / 18,825.68-28,236.98-6,345.43

Finding the Fourth Proportional to 18,825.68, 28,236.98 and 6,345.43

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Solution

The fourth proportional to 18,825.68, 28,236.98 and 6,345.43 is: 9,517.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,825.68 : 28,236.98 = 6,345.43 : x
  2. Step 2: Convert to fraction form
    18,825.68/28,236.98 = 6,345.43/x
  3. Step 3: Cross multiply
    18,825.68x = 28,236.98 × 6,345.43
  4. Step 4: Simplify right side
    18,825.68x = 179,175,780.00
  5. Step 5: Solve for x
    x = 179,175,780.00/18,825.68
  6. Step 6: Final answer
    x = 9,517.63

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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.