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Finding the Fourth Proportional to 18,692.19, 28,033.96 and 5,541.39

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Solution

The fourth proportional to 18,692.19, 28,033.96 and 5,541.39 is: 8,310.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692.19 : 28,033.96 = 5,541.39 : x
  2. Step 2: Convert to fraction form
    18,692.19/28,033.96 = 5,541.39/x
  3. Step 3: Cross multiply
    18,692.19x = 28,033.96 × 5,541.39
  4. Step 4: Simplify right side
    18,692.19x = 155,346,937.73
  5. Step 5: Solve for x
    x = 155,346,937.73/18,692.19
  6. Step 6: Final answer
    x = 8,310.80

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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.