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Finding the Fourth Proportional to 18,737.08, 28,103.19 and 8,882.62

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Solution

The fourth proportional to 18,737.08, 28,103.19 and 8,882.62 is: 13,322.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,737.08 : 28,103.19 = 8,882.62 : x
  2. Step 2: Convert to fraction form
    18,737.08/28,103.19 = 8,882.62/x
  3. Step 3: Cross multiply
    18,737.08x = 28,103.19 × 8,882.62
  4. Step 4: Simplify right side
    18,737.08x = 249,629,853.99
  5. Step 5: Solve for x
    x = 249,629,853.99/18,737.08
  6. Step 6: Final answer
    x = 13,322.77

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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.