Home / 13,613.62-20,422.08-4,849.42

Finding the Fourth Proportional to 13,613.62, 20,422.08 and 4,849.42

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Solution

The fourth proportional to 13,613.62, 20,422.08 and 4,849.42 is: 7,274.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.62 : 20,422.08 = 4,849.42 : x
  2. Step 2: Convert to fraction form
    13,613.62/20,422.08 = 4,849.42/x
  3. Step 3: Cross multiply
    13,613.62x = 20,422.08 × 4,849.42
  4. Step 4: Simplify right side
    13,613.62x = 99,035,243.19
  5. Step 5: Solve for x
    x = 99,035,243.19/13,613.62
  6. Step 6: Final answer
    x = 7,274.72

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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.