Home / 14,275.91-21,418.67-6,879.53

Finding the Fourth Proportional to 14,275.91, 21,418.67 and 6,879.53

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Solution

The fourth proportional to 14,275.91, 21,418.67 and 6,879.53 is: 10,321.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,275.91 : 21,418.67 = 6,879.53 : x
  2. Step 2: Convert to fraction form
    14,275.91/21,418.67 = 6,879.53/x
  3. Step 3: Cross multiply
    14,275.91x = 21,418.67 × 6,879.53
  4. Step 4: Simplify right side
    14,275.91x = 147,350,453.57
  5. Step 5: Solve for x
    x = 147,350,453.57/14,275.91
  6. Step 6: Final answer
    x = 10,321.61

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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.