Home / 8,939.88-13,410.08-4,260.38

Finding the Fourth Proportional to 8,939.88, 13,410.08 and 4,260.38

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Solution

The fourth proportional to 8,939.88, 13,410.08 and 4,260.38 is: 6,390.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939.88 : 13,410.08 = 4,260.38 : x
  2. Step 2: Convert to fraction form
    8,939.88/13,410.08 = 4,260.38/x
  3. Step 3: Cross multiply
    8,939.88x = 13,410.08 × 4,260.38
  4. Step 4: Simplify right side
    8,939.88x = 57,131,948.28
  5. Step 5: Solve for x
    x = 57,131,948.28/8,939.88
  6. Step 6: Final answer
    x = 6,390.68

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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.