Home / 14,275.99-21,408.31-5,505.31

Finding the Fourth Proportional to 14,275.99, 21,408.31 and 5,505.31

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Solution

The fourth proportional to 14,275.99, 21,408.31 and 5,505.31 is: 8,255.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,275.99 : 21,408.31 = 5,505.31 : x
  2. Step 2: Convert to fraction form
    14,275.99/21,408.31 = 5,505.31/x
  3. Step 3: Cross multiply
    14,275.99x = 21,408.31 × 5,505.31
  4. Step 4: Simplify right side
    14,275.99x = 117,859,383.13
  5. Step 5: Solve for x
    x = 117,859,383.13/14,275.99
  6. Step 6: Final answer
    x = 8,255.78

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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.