Home / 12,077.51-18,028.98-11,212.43

Finding the Fourth Proportional to 12,077.51, 18,028.98 and 11,212.43

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Solution

The fourth proportional to 12,077.51, 18,028.98 and 11,212.43 is: 16,737.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,077.51 : 18,028.98 = 11,212.43 : x
  2. Step 2: Convert to fraction form
    12,077.51/18,028.98 = 11,212.43/x
  3. Step 3: Cross multiply
    12,077.51x = 18,028.98 × 11,212.43
  4. Step 4: Simplify right side
    12,077.51x = 202,148,586.08
  5. Step 5: Solve for x
    x = 202,148,586.08/12,077.51
  6. Step 6: Final answer
    x = 16,737.61

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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.