Home / 16,160.74-22,302.09-8,991.22

Finding the Fourth Proportional to 16,160.74, 22,302.09 and 8,991.22

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Solution

The fourth proportional to 16,160.74, 22,302.09 and 8,991.22 is: 12,408.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,160.74 : 22,302.09 = 8,991.22 : x
  2. Step 2: Convert to fraction form
    16,160.74/22,302.09 = 8,991.22/x
  3. Step 3: Cross multiply
    16,160.74x = 22,302.09 × 8,991.22
  4. Step 4: Simplify right side
    16,160.74x = 200,522,997.65
  5. Step 5: Solve for x
    x = 200,522,997.65/16,160.74
  6. Step 6: Final answer
    x = 12,408.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.