Home / 8,406.13-12,613.44-3,479.30

Finding the Fourth Proportional to 8,406.13, 12,613.44 and 3,479.30

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Solution

The fourth proportional to 8,406.13, 12,613.44 and 3,479.30 is: 5,220.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,406.13 : 12,613.44 = 3,479.30 : x
  2. Step 2: Convert to fraction form
    8,406.13/12,613.44 = 3,479.30/x
  3. Step 3: Cross multiply
    8,406.13x = 12,613.44 × 3,479.30
  4. Step 4: Simplify right side
    8,406.13x = 43,885,941.79
  5. Step 5: Solve for x
    x = 43,885,941.79/8,406.13
  6. Step 6: Final answer
    x = 5,220.71

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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.