Home / 8,479.85-12,727.53-4,322.84

Finding the Fourth Proportional to 8,479.85, 12,727.53 and 4,322.84

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Solution

The fourth proportional to 8,479.85, 12,727.53 and 4,322.84 is: 6,488.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.85 : 12,727.53 = 4,322.84 : x
  2. Step 2: Convert to fraction form
    8,479.85/12,727.53 = 4,322.84/x
  3. Step 3: Cross multiply
    8,479.85x = 12,727.53 × 4,322.84
  4. Step 4: Simplify right side
    8,479.85x = 55,019,012.15
  5. Step 5: Solve for x
    x = 55,019,012.15/8,479.85
  6. Step 6: Final answer
    x = 6,488.21

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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.