Home / 14,212.20-21,324.44-7,630.68

Finding the Fourth Proportional to 14,212.20, 21,324.44 and 7,630.68

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Solution

The fourth proportional to 14,212.20, 21,324.44 and 7,630.68 is: 11,449.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,212.20 : 21,324.44 = 7,630.68 : x
  2. Step 2: Convert to fraction form
    14,212.20/21,324.44 = 7,630.68/x
  3. Step 3: Cross multiply
    14,212.20x = 21,324.44 × 7,630.68
  4. Step 4: Simplify right side
    14,212.20x = 162,719,977.82
  5. Step 5: Solve for x
    x = 162,719,977.82/14,212.20
  6. Step 6: Final answer
    x = 11,449.32

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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.