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Finding the Fourth Proportional to 19,137.48, 28,704.42 and 6,654.48

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Solution

The fourth proportional to 19,137.48, 28,704.42 and 6,654.48 is: 9,981.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,137.48 : 28,704.42 = 6,654.48 : x
  2. Step 2: Convert to fraction form
    19,137.48/28,704.42 = 6,654.48/x
  3. Step 3: Cross multiply
    19,137.48x = 28,704.42 × 6,654.48
  4. Step 4: Simplify right side
    19,137.48x = 191,012,988.80
  5. Step 5: Solve for x
    x = 191,012,988.80/19,137.48
  6. Step 6: Final answer
    x = 9,981.09

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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.