Home / 18,945.30-28,418.04-5,797.65

Finding the Fourth Proportional to 18,945.30, 28,418.04 and 5,797.65

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Solution

The fourth proportional to 18,945.30, 28,418.04 and 5,797.65 is: 8,696.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,945.30 : 28,418.04 = 5,797.65 : x
  2. Step 2: Convert to fraction form
    18,945.30/28,418.04 = 5,797.65/x
  3. Step 3: Cross multiply
    18,945.30x = 28,418.04 × 5,797.65
  4. Step 4: Simplify right side
    18,945.30x = 164,757,849.61
  5. Step 5: Solve for x
    x = 164,757,849.61/18,945.30
  6. Step 6: Final answer
    x = 8,696.50

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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.