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Finding the Fourth Proportional to 19,166.37, 28,737.25 and 12,584.87

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Solution

The fourth proportional to 19,166.37, 28,737.25 and 12,584.87 is: 18,869.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,166.37 : 28,737.25 = 12,584.87 : x
  2. Step 2: Convert to fraction form
    19,166.37/28,737.25 = 12,584.87/x
  3. Step 3: Cross multiply
    19,166.37x = 28,737.25 × 12,584.87
  4. Step 4: Simplify right side
    19,166.37x = 361,654,488.02
  5. Step 5: Solve for x
    x = 361,654,488.02/19,166.37
  6. Step 6: Final answer
    x = 18,869.22

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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.