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Finding the Fourth Proportional to 8,482.23, 12,722.73 and 4,319.64

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Solution

The fourth proportional to 8,482.23, 12,722.73 and 4,319.64 is: 6,479.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,482.23 : 12,722.73 = 4,319.64 : x
  2. Step 2: Convert to fraction form
    8,482.23/12,722.73 = 4,319.64/x
  3. Step 3: Cross multiply
    8,482.23x = 12,722.73 × 4,319.64
  4. Step 4: Simplify right side
    8,482.23x = 54,957,613.42
  5. Step 5: Solve for x
    x = 54,957,613.42/8,482.23
  6. Step 6: Final answer
    x = 6,479.15

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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.