Home / 12,210.38-18,296.63-8,469.47

Finding the Fourth Proportional to 12,210.38, 18,296.63 and 8,469.47

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Solution

The fourth proportional to 12,210.38, 18,296.63 and 8,469.47 is: 12,691.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,210.38 : 18,296.63 = 8,469.47 : x
  2. Step 2: Convert to fraction form
    12,210.38/18,296.63 = 8,469.47/x
  3. Step 3: Cross multiply
    12,210.38x = 18,296.63 × 8,469.47
  4. Step 4: Simplify right side
    12,210.38x = 154,962,625.06
  5. Step 5: Solve for x
    x = 154,962,625.06/12,210.38
  6. Step 6: Final answer
    x = 12,691.06

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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.