Home / 12,212.19-18,309.96-5,634.72

Finding the Fourth Proportional to 12,212.19, 18,309.96 and 5,634.72

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Solution

The fourth proportional to 12,212.19, 18,309.96 and 5,634.72 is: 8,448.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212.19 : 18,309.96 = 5,634.72 : x
  2. Step 2: Convert to fraction form
    12,212.19/18,309.96 = 5,634.72/x
  3. Step 3: Cross multiply
    12,212.19x = 18,309.96 × 5,634.72
  4. Step 4: Simplify right side
    12,212.19x = 103,171,497.81
  5. Step 5: Solve for x
    x = 103,171,497.81/12,212.19
  6. Step 6: Final answer
    x = 8,448.24

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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.