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Finding the Fourth Proportional to 8,191.94, 12,269.18 and 4,898.28

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Solution

The fourth proportional to 8,191.94, 12,269.18 and 4,898.28 is: 7,336.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,191.94 : 12,269.18 = 4,898.28 : x
  2. Step 2: Convert to fraction form
    8,191.94/12,269.18 = 4,898.28/x
  3. Step 3: Cross multiply
    8,191.94x = 12,269.18 × 4,898.28
  4. Step 4: Simplify right side
    8,191.94x = 60,097,891.26
  5. Step 5: Solve for x
    x = 60,097,891.26/8,191.94
  6. Step 6: Final answer
    x = 7,336.22

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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.