Home / 13,613.30-20,400.82-10,827.62

Finding the Fourth Proportional to 13,613.30, 20,400.82 and 10,827.62

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Solution

The fourth proportional to 13,613.30, 20,400.82 and 10,827.62 is: 16,226.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.30 : 20,400.82 = 10,827.62 : x
  2. Step 2: Convert to fraction form
    13,613.30/20,400.82 = 10,827.62/x
  3. Step 3: Cross multiply
    13,613.30x = 20,400.82 × 10,827.62
  4. Step 4: Simplify right side
    13,613.30x = 220,892,326.65
  5. Step 5: Solve for x
    x = 220,892,326.65/13,613.30
  6. Step 6: Final answer
    x = 16,226.21

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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.