Home / 14,256.97-21,385.46-3,868.72

Finding the Fourth Proportional to 14,256.97, 21,385.46 and 3,868.72

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Solution

The fourth proportional to 14,256.97, 21,385.46 and 3,868.72 is: 5,803.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,256.97 : 21,385.46 = 3,868.72 : x
  2. Step 2: Convert to fraction form
    14,256.97/21,385.46 = 3,868.72/x
  3. Step 3: Cross multiply
    14,256.97x = 21,385.46 × 3,868.72
  4. Step 4: Simplify right side
    14,256.97x = 82,734,313.02
  5. Step 5: Solve for x
    x = 82,734,313.02/14,256.97
  6. Step 6: Final answer
    x = 5,803.08

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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.