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Finding the Fourth Proportional to 12,349.52, 18,524.32 and 2,989.52

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Solution

The fourth proportional to 12,349.52, 18,524.32 and 2,989.52 is: 4,484.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,349.52 : 18,524.32 = 2,989.52 : x
  2. Step 2: Convert to fraction form
    12,349.52/18,524.32 = 2,989.52/x
  3. Step 3: Cross multiply
    12,349.52x = 18,524.32 × 2,989.52
  4. Step 4: Simplify right side
    12,349.52x = 55,378,836.34
  5. Step 5: Solve for x
    x = 55,378,836.34/12,349.52
  6. Step 6: Final answer
    x = 4,484.29

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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.