Home / 8,743.78-13,103.91-4,789.13

Finding the Fourth Proportional to 8,743.78, 13,103.91 and 4,789.13

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Solution

The fourth proportional to 8,743.78, 13,103.91 and 4,789.13 is: 7,177.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,743.78 : 13,103.91 = 4,789.13 : x
  2. Step 2: Convert to fraction form
    8,743.78/13,103.91 = 4,789.13/x
  3. Step 3: Cross multiply
    8,743.78x = 13,103.91 × 4,789.13
  4. Step 4: Simplify right side
    8,743.78x = 62,756,262.98
  5. Step 5: Solve for x
    x = 62,756,262.98/8,743.78
  6. Step 6: Final answer
    x = 7,177.25

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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.