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Finding the Fourth Proportional to 8,165.57, 12,246.93 and 3,488.22

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Solution

The fourth proportional to 8,165.57, 12,246.93 and 3,488.22 is: 5,231.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,165.57 : 12,246.93 = 3,488.22 : x
  2. Step 2: Convert to fraction form
    8,165.57/12,246.93 = 3,488.22/x
  3. Step 3: Cross multiply
    8,165.57x = 12,246.93 × 3,488.22
  4. Step 4: Simplify right side
    8,165.57x = 42,719,986.16
  5. Step 5: Solve for x
    x = 42,719,986.16/8,165.57
  6. Step 6: Final answer
    x = 5,231.72

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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.