Home / 12,212.27-18,230.77-11,345.06

Finding the Fourth Proportional to 12,212.27, 18,230.77 and 11,345.06

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Solution

The fourth proportional to 12,212.27, 18,230.77 and 11,345.06 is: 16,936.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212.27 : 18,230.77 = 11,345.06 : x
  2. Step 2: Convert to fraction form
    12,212.27/18,230.77 = 11,345.06/x
  3. Step 3: Cross multiply
    12,212.27x = 18,230.77 × 11,345.06
  4. Step 4: Simplify right side
    12,212.27x = 206,829,239.25
  5. Step 5: Solve for x
    x = 206,829,239.25/12,212.27
  6. Step 6: Final answer
    x = 16,936.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.