Home / 8,784.45-13,173.49-2,939.69

Finding the Fourth Proportional to 8,784.45, 13,173.49 and 2,939.69

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Solution

The fourth proportional to 8,784.45, 13,173.49 and 2,939.69 is: 4,408.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784.45 : 13,173.49 = 2,939.69 : x
  2. Step 2: Convert to fraction form
    8,784.45/13,173.49 = 2,939.69/x
  3. Step 3: Cross multiply
    8,784.45x = 13,173.49 × 2,939.69
  4. Step 4: Simplify right side
    8,784.45x = 38,725,976.82
  5. Step 5: Solve for x
    x = 38,725,976.82/8,784.45
  6. Step 6: Final answer
    x = 4,408.47

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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.