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Finding the Fourth Proportional to 12,371.41, 18,555.63 and 3,487.41

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Solution

The fourth proportional to 12,371.41, 18,555.63 and 3,487.41 is: 5,230.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,371.41 : 18,555.63 = 3,487.41 : x
  2. Step 2: Convert to fraction form
    12,371.41/18,555.63 = 3,487.41/x
  3. Step 3: Cross multiply
    12,371.41x = 18,555.63 × 3,487.41
  4. Step 4: Simplify right side
    12,371.41x = 64,711,089.62
  5. Step 5: Solve for x
    x = 64,711,089.62/12,371.41
  6. Step 6: Final answer
    x = 5,230.70

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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.