Home / 14,249.79-21,375.90-4,391.28

Finding the Fourth Proportional to 14,249.79, 21,375.90 and 4,391.28

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Solution

The fourth proportional to 14,249.79, 21,375.90 and 4,391.28 is: 6,587.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,249.79 : 21,375.90 = 4,391.28 : x
  2. Step 2: Convert to fraction form
    14,249.79/21,375.90 = 4,391.28/x
  3. Step 3: Cross multiply
    14,249.79x = 21,375.90 × 4,391.28
  4. Step 4: Simplify right side
    14,249.79x = 93,867,562.15
  5. Step 5: Solve for x
    x = 93,867,562.15/14,249.79
  6. Step 6: Final answer
    x = 6,587.29

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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.