Home / 16,064.69-22,169.57-8,991.09

Finding the Fourth Proportional to 16,064.69, 22,169.57 and 8,991.09

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Solution

The fourth proportional to 16,064.69, 22,169.57 and 8,991.09 is: 12,407.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,064.69 : 22,169.57 = 8,991.09 : x
  2. Step 2: Convert to fraction form
    16,064.69/22,169.57 = 8,991.09/x
  3. Step 3: Cross multiply
    16,064.69x = 22,169.57 × 8,991.09
  4. Step 4: Simplify right side
    16,064.69x = 199,328,554.18
  5. Step 5: Solve for x
    x = 199,328,554.18/16,064.69
  6. Step 6: Final answer
    x = 12,407.87

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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.