Home / 14,167.12-21,255-10,227.28

Finding the Fourth Proportional to 14,167.12, 21,255 and 10,227.28

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Solution

The fourth proportional to 14,167.12, 21,255 and 10,227.28 is: 15,344.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,167.12 : 21,255 = 10,227.28 : x
  2. Step 2: Convert to fraction form
    14,167.12/21,255 = 10,227.28/x
  3. Step 3: Cross multiply
    14,167.12x = 21,255 × 10,227.28
  4. Step 4: Simplify right side
    14,167.12x = 217,380,836.40
  5. Step 5: Solve for x
    x = 217,380,836.40/14,167.12
  6. Step 6: Final answer
    x = 15,344.04

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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.