Home / 18,728.24-28,084.20-9,364.64

Finding the Fourth Proportional to 18,728.24, 28,084.20 and 9,364.64

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Solution

The fourth proportional to 18,728.24, 28,084.20 and 9,364.64 is: 14,042.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728.24 : 28,084.20 = 9,364.64 : x
  2. Step 2: Convert to fraction form
    18,728.24/28,084.20 = 9,364.64/x
  3. Step 3: Cross multiply
    18,728.24x = 28,084.20 × 9,364.64
  4. Step 4: Simplify right side
    18,728.24x = 262,998,422.69
  5. Step 5: Solve for x
    x = 262,998,422.69/18,728.24
  6. Step 6: Final answer
    x = 14,042.88

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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.