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Finding the Fourth Proportional to 12,737.48, 19,106.48 and 3,972.48

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Solution

The fourth proportional to 12,737.48, 19,106.48 and 3,972.48 is: 5,958.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,737.48 : 19,106.48 = 3,972.48 : x
  2. Step 2: Convert to fraction form
    12,737.48/19,106.48 = 3,972.48/x
  3. Step 3: Cross multiply
    12,737.48x = 19,106.48 × 3,972.48
  4. Step 4: Simplify right side
    12,737.48x = 75,900,109.67
  5. Step 5: Solve for x
    x = 75,900,109.67/12,737.48
  6. Step 6: Final answer
    x = 5,958.80

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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.