Home / 14,253.97-21,380.96-3,865.72

Finding the Fourth Proportional to 14,253.97, 21,380.96 and 3,865.72

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Solution

The fourth proportional to 14,253.97, 21,380.96 and 3,865.72 is: 5,798.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,253.97 : 21,380.96 = 3,865.72 : x
  2. Step 2: Convert to fraction form
    14,253.97/21,380.96 = 3,865.72/x
  3. Step 3: Cross multiply
    14,253.97x = 21,380.96 × 3,865.72
  4. Step 4: Simplify right side
    14,253.97x = 82,652,760.90
  5. Step 5: Solve for x
    x = 82,652,760.90/14,253.97
  6. Step 6: Final answer
    x = 5,798.58

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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.