Home / 18,974.88-28,465.70-6,491.97

Finding the Fourth Proportional to 18,974.88, 28,465.70 and 6,491.97

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Solution

The fourth proportional to 18,974.88, 28,465.70 and 6,491.97 is: 9,739.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,974.88 : 28,465.70 = 6,491.97 : x
  2. Step 2: Convert to fraction form
    18,974.88/28,465.70 = 6,491.97/x
  3. Step 3: Cross multiply
    18,974.88x = 28,465.70 × 6,491.97
  4. Step 4: Simplify right side
    18,974.88x = 184,798,437.97
  5. Step 5: Solve for x
    x = 184,798,437.97/18,974.88
  6. Step 6: Final answer
    x = 9,739.11

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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.