Home / 18,790.24-28,169.52-9,418.72

Finding the Fourth Proportional to 18,790.24, 28,169.52 and 9,418.72

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Solution

The fourth proportional to 18,790.24, 28,169.52 and 9,418.72 is: 14,120.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,790.24 : 28,169.52 = 9,418.72 : x
  2. Step 2: Convert to fraction form
    18,790.24/28,169.52 = 9,418.72/x
  3. Step 3: Cross multiply
    18,790.24x = 28,169.52 × 9,418.72
  4. Step 4: Simplify right side
    18,790.24x = 265,320,821.41
  5. Step 5: Solve for x
    x = 265,320,821.41/18,790.24
  6. Step 6: Final answer
    x = 14,120.14

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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.