Home / 14,261.15-21,391.58-3,872.90

Finding the Fourth Proportional to 14,261.15, 21,391.58 and 3,872.90

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Solution

The fourth proportional to 14,261.15, 21,391.58 and 3,872.90 is: 5,809.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,261.15 : 21,391.58 = 3,872.90 : x
  2. Step 2: Convert to fraction form
    14,261.15/21,391.58 = 3,872.90/x
  3. Step 3: Cross multiply
    14,261.15x = 21,391.58 × 3,872.90
  4. Step 4: Simplify right side
    14,261.15x = 82,847,323.86
  5. Step 5: Solve for x
    x = 82,847,323.86/14,261.15
  6. Step 6: Final answer
    x = 5,809.30

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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.