Home / 14,123.20-21,177.94-4,260.64

Finding the Fourth Proportional to 14,123.20, 21,177.94 and 4,260.64

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Solution

The fourth proportional to 14,123.20, 21,177.94 and 4,260.64 is: 6,388.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.20 : 21,177.94 = 4,260.64 : x
  2. Step 2: Convert to fraction form
    14,123.20/21,177.94 = 4,260.64/x
  3. Step 3: Cross multiply
    14,123.20x = 21,177.94 × 4,260.64
  4. Step 4: Simplify right side
    14,123.20x = 90,231,578.28
  5. Step 5: Solve for x
    x = 90,231,578.28/14,123.20
  6. Step 6: Final answer
    x = 6,388.89

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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.