Home / 14,180.78-21,272.04-4,320.74

Finding the Fourth Proportional to 14,180.78, 21,272.04 and 4,320.74

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Solution

The fourth proportional to 14,180.78, 21,272.04 and 4,320.74 is: 6,481.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,180.78 : 21,272.04 = 4,320.74 : x
  2. Step 2: Convert to fraction form
    14,180.78/21,272.04 = 4,320.74/x
  3. Step 3: Cross multiply
    14,180.78x = 21,272.04 × 4,320.74
  4. Step 4: Simplify right side
    14,180.78x = 91,910,954.11
  5. Step 5: Solve for x
    x = 91,910,954.11/14,180.78
  6. Step 6: Final answer
    x = 6,481.38

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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.