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Finding the Fourth Proportional to 8,191.59, 12,287.12 and 4,495.56

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Solution

The fourth proportional to 8,191.59, 12,287.12 and 4,495.56 is: 6,743.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,191.59 : 12,287.12 = 4,495.56 : x
  2. Step 2: Convert to fraction form
    8,191.59/12,287.12 = 4,495.56/x
  3. Step 3: Cross multiply
    8,191.59x = 12,287.12 × 4,495.56
  4. Step 4: Simplify right side
    8,191.59x = 55,237,462.71
  5. Step 5: Solve for x
    x = 55,237,462.71/8,191.59
  6. Step 6: Final answer
    x = 6,743.19

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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.