Home / 11,715.23-17,572.85-4,789.73

Finding the Fourth Proportional to 11,715.23, 17,572.85 and 4,789.73

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Solution

The fourth proportional to 11,715.23, 17,572.85 and 4,789.73 is: 7,184.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,715.23 : 17,572.85 = 4,789.73 : x
  2. Step 2: Convert to fraction form
    11,715.23/17,572.85 = 4,789.73/x
  3. Step 3: Cross multiply
    11,715.23x = 17,572.85 × 4,789.73
  4. Step 4: Simplify right side
    11,715.23x = 84,169,095.02
  5. Step 5: Solve for x
    x = 84,169,095.02/11,715.23
  6. Step 6: Final answer
    x = 7,184.59

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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.