Home / 18,694.72-28,036.01-6,211.39

Finding the Fourth Proportional to 18,694.72, 28,036.01 and 6,211.39

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Solution

The fourth proportional to 18,694.72, 28,036.01 and 6,211.39 is: 9,315.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,694.72 : 28,036.01 = 6,211.39 : x
  2. Step 2: Convert to fraction form
    18,694.72/28,036.01 = 6,211.39/x
  3. Step 3: Cross multiply
    18,694.72x = 28,036.01 × 6,211.39
  4. Step 4: Simplify right side
    18,694.72x = 174,142,572.69
  5. Step 5: Solve for x
    x = 174,142,572.69/18,694.72
  6. Step 6: Final answer
    x = 9,315.07

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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.