Home / 16,991.12-25,486.68-5,305.26

Finding the Fourth Proportional to 16,991.12, 25,486.68 and 5,305.26

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Solution

The fourth proportional to 16,991.12, 25,486.68 and 5,305.26 is: 7,957.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991.12 : 25,486.68 = 5,305.26 : x
  2. Step 2: Convert to fraction form
    16,991.12/25,486.68 = 5,305.26/x
  3. Step 3: Cross multiply
    16,991.12x = 25,486.68 × 5,305.26
  4. Step 4: Simplify right side
    16,991.12x = 135,213,463.94
  5. Step 5: Solve for x
    x = 135,213,463.94/16,991.12
  6. Step 6: Final answer
    x = 7,957.89

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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.