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Finding the Fourth Proportional to 18,898.14, 28,337.39 and 5,569.39

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Solution

The fourth proportional to 18,898.14, 28,337.39 and 5,569.39 is: 8,351.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,898.14 : 28,337.39 = 5,569.39 : x
  2. Step 2: Convert to fraction form
    18,898.14/28,337.39 = 5,569.39/x
  3. Step 3: Cross multiply
    18,898.14x = 28,337.39 × 5,569.39
  4. Step 4: Simplify right side
    18,898.14x = 157,821,976.49
  5. Step 5: Solve for x
    x = 157,821,976.49/18,898.14
  6. Step 6: Final answer
    x = 8,351.19

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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.