Home / 8,930.43-13,395.12-3,998.75

Finding the Fourth Proportional to 8,930.43, 13,395.12 and 3,998.75

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Solution

The fourth proportional to 8,930.43, 13,395.12 and 3,998.75 is: 5,997.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.43 : 13,395.12 = 3,998.75 : x
  2. Step 2: Convert to fraction form
    8,930.43/13,395.12 = 3,998.75/x
  3. Step 3: Cross multiply
    8,930.43x = 13,395.12 × 3,998.75
  4. Step 4: Simplify right side
    8,930.43x = 53,563,669.12
  5. Step 5: Solve for x
    x = 53,563,669.12/8,930.43
  6. Step 6: Final answer
    x = 5,997.88

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1.5x scale

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.