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Finding the Fourth Proportional to 8,311.56, 12,470.04 and 5,549.46

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Solution

The fourth proportional to 8,311.56, 12,470.04 and 5,549.46 is: 8,325.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.56 : 12,470.04 = 5,549.46 : x
  2. Step 2: Convert to fraction form
    8,311.56/12,470.04 = 5,549.46/x
  3. Step 3: Cross multiply
    8,311.56x = 12,470.04 × 5,549.46
  4. Step 4: Simplify right side
    8,311.56x = 69,201,988.18
  5. Step 5: Solve for x
    x = 69,201,988.18/8,311.56
  6. Step 6: Final answer
    x = 8,325.99

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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.