Home / 14,651.52-20,220.93-8,278.43

Finding the Fourth Proportional to 14,651.52, 20,220.93 and 8,278.43

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Solution

The fourth proportional to 14,651.52, 20,220.93 and 8,278.43 is: 11,425.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,651.52 : 20,220.93 = 8,278.43 : x
  2. Step 2: Convert to fraction form
    14,651.52/20,220.93 = 8,278.43/x
  3. Step 3: Cross multiply
    14,651.52x = 20,220.93 × 8,278.43
  4. Step 4: Simplify right side
    14,651.52x = 167,397,452.44
  5. Step 5: Solve for x
    x = 167,397,452.44/14,651.52
  6. Step 6: Final answer
    x = 11,425.26

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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.