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Finding the Fourth Proportional to 8,143.56, 12,216.06 and 4,444.20

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Solution

The fourth proportional to 8,143.56, 12,216.06 and 4,444.20 is: 6,666.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143.56 : 12,216.06 = 4,444.20 : x
  2. Step 2: Convert to fraction form
    8,143.56/12,216.06 = 4,444.20/x
  3. Step 3: Cross multiply
    8,143.56x = 12,216.06 × 4,444.20
  4. Step 4: Simplify right side
    8,143.56x = 54,290,613.85
  5. Step 5: Solve for x
    x = 54,290,613.85/8,143.56
  6. Step 6: Final answer
    x = 6,666.69

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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.