Home / 14,229.78-21,326.31-6,818.82

Finding the Fourth Proportional to 14,229.78, 21,326.31 and 6,818.82

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Solution

The fourth proportional to 14,229.78, 21,326.31 and 6,818.82 is: 10,219.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,229.78 : 21,326.31 = 6,818.82 : x
  2. Step 2: Convert to fraction form
    14,229.78/21,326.31 = 6,818.82/x
  3. Step 3: Cross multiply
    14,229.78x = 21,326.31 × 6,818.82
  4. Step 4: Simplify right side
    14,229.78x = 145,420,269.15
  5. Step 5: Solve for x
    x = 145,420,269.15/14,229.78
  6. Step 6: Final answer
    x = 10,219.43

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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.