Home / 16,668.20-23,002.11-9,115.22

Finding the Fourth Proportional to 16,668.20, 23,002.11 and 9,115.22

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Solution

The fourth proportional to 16,668.20, 23,002.11 and 9,115.22 is: 12,579.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,668.20 : 23,002.11 = 9,115.22 : x
  2. Step 2: Convert to fraction form
    16,668.20/23,002.11 = 9,115.22/x
  3. Step 3: Cross multiply
    16,668.20x = 23,002.11 × 9,115.22
  4. Step 4: Simplify right side
    16,668.20x = 209,669,350.62
  5. Step 5: Solve for x
    x = 209,669,350.62/16,668.20
  6. Step 6: Final answer
    x = 12,579.01

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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.