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Finding the Fourth Proportional to 12,480.66, 18,703.62 and 9,694.62

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Solution

The fourth proportional to 12,480.66, 18,703.62 and 9,694.62 is: 14,528.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480.66 : 18,703.62 = 9,694.62 : x
  2. Step 2: Convert to fraction form
    12,480.66/18,703.62 = 9,694.62/x
  3. Step 3: Cross multiply
    12,480.66x = 18,703.62 × 9,694.62
  4. Step 4: Simplify right side
    12,480.66x = 181,324,488.52
  5. Step 5: Solve for x
    x = 181,324,488.52/12,480.66
  6. Step 6: Final answer
    x = 14,528.44

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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.