Home / 12,633.36-18,949.83-4,319.11

Finding the Fourth Proportional to 12,633.36, 18,949.83 and 4,319.11

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Solution

The fourth proportional to 12,633.36, 18,949.83 and 4,319.11 is: 6,478.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,633.36 : 18,949.83 = 4,319.11 : x
  2. Step 2: Convert to fraction form
    12,633.36/18,949.83 = 4,319.11/x
  3. Step 3: Cross multiply
    12,633.36x = 18,949.83 × 4,319.11
  4. Step 4: Simplify right side
    12,633.36x = 81,846,400.25
  5. Step 5: Solve for x
    x = 81,846,400.25/12,633.36
  6. Step 6: Final answer
    x = 6,478.59

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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.