Home / 18,722.79-28,091.83-12,062.77

Finding the Fourth Proportional to 18,722.79, 28,091.83 and 12,062.77

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Solution

The fourth proportional to 18,722.79, 28,091.83 and 12,062.77 is: 18,099.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722.79 : 28,091.83 = 12,062.77 : x
  2. Step 2: Convert to fraction form
    18,722.79/28,091.83 = 12,062.77/x
  3. Step 3: Cross multiply
    18,722.79x = 28,091.83 × 12,062.77
  4. Step 4: Simplify right side
    18,722.79x = 338,865,284.17
  5. Step 5: Solve for x
    x = 338,865,284.17/18,722.79
  6. Step 6: Final answer
    x = 18,099.08

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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.