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Finding the Fourth Proportional to 12,003.62, 18,008.09 and 4,608.08

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Solution

The fourth proportional to 12,003.62, 18,008.09 and 4,608.08 is: 6,913.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,003.62 : 18,008.09 = 4,608.08 : x
  2. Step 2: Convert to fraction form
    12,003.62/18,008.09 = 4,608.08/x
  3. Step 3: Cross multiply
    12,003.62x = 18,008.09 × 4,608.08
  4. Step 4: Simplify right side
    12,003.62x = 82,982,606.29
  5. Step 5: Solve for x
    x = 82,982,606.29/12,003.62
  6. Step 6: Final answer
    x = 6,913.13

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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.