Home / 16,065.38-22,169.36-8,990.44

Finding the Fourth Proportional to 16,065.38, 22,169.36 and 8,990.44

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Solution

The fourth proportional to 16,065.38, 22,169.36 and 8,990.44 is: 12,406.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,065.38 : 22,169.36 = 8,990.44 : x
  2. Step 2: Convert to fraction form
    16,065.38/22,169.36 = 8,990.44/x
  3. Step 3: Cross multiply
    16,065.38x = 22,169.36 × 8,990.44
  4. Step 4: Simplify right side
    16,065.38x = 199,312,145.12
  5. Step 5: Solve for x
    x = 199,312,145.12/16,065.38
  6. Step 6: Final answer
    x = 12,406.31

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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.