Home / 18,738.26-28,107.51-5,590.75

Finding the Fourth Proportional to 18,738.26, 28,107.51 and 5,590.75

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Solution

The fourth proportional to 18,738.26, 28,107.51 and 5,590.75 is: 8,386.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738.26 : 28,107.51 = 5,590.75 : x
  2. Step 2: Convert to fraction form
    18,738.26/28,107.51 = 5,590.75/x
  3. Step 3: Cross multiply
    18,738.26x = 28,107.51 × 5,590.75
  4. Step 4: Simplify right side
    18,738.26x = 157,141,943.95
  5. Step 5: Solve for x
    x = 157,141,943.95/18,738.26
  6. Step 6: Final answer
    x = 8,386.15

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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.