Home / 15,418.75-21,277.73-8,704.23

Finding the Fourth Proportional to 15,418.75, 21,277.73 and 8,704.23

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Solution

The fourth proportional to 15,418.75, 21,277.73 and 8,704.23 is: 12,011.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418.75 : 21,277.73 = 8,704.23 : x
  2. Step 2: Convert to fraction form
    15,418.75/21,277.73 = 8,704.23/x
  3. Step 3: Cross multiply
    15,418.75x = 21,277.73 × 8,704.23
  4. Step 4: Simplify right side
    15,418.75x = 185,206,255.80
  5. Step 5: Solve for x
    x = 185,206,255.80/15,418.75
  6. Step 6: Final answer
    x = 12,011.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.