Home / 14,212.45-21,321.30-4,851.95

Finding the Fourth Proportional to 14,212.45, 21,321.30 and 4,851.95

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Solution

The fourth proportional to 14,212.45, 21,321.30 and 4,851.95 is: 7,278.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,212.45 : 21,321.30 = 4,851.95 : x
  2. Step 2: Convert to fraction form
    14,212.45/21,321.30 = 4,851.95/x
  3. Step 3: Cross multiply
    14,212.45x = 21,321.30 × 4,851.95
  4. Step 4: Simplify right side
    14,212.45x = 103,449,881.54
  5. Step 5: Solve for x
    x = 103,449,881.54/14,212.45
  6. Step 6: Final answer
    x = 7,278.82

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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.