Home / 15,613.57-23,400.23-13,604.12

Finding the Fourth Proportional to 15,613.57, 23,400.23 and 13,604.12

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Solution

The fourth proportional to 15,613.57, 23,400.23 and 13,604.12 is: 20,388.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,613.57 : 23,400.23 = 13,604.12 : x
  2. Step 2: Convert to fraction form
    15,613.57/23,400.23 = 13,604.12/x
  3. Step 3: Cross multiply
    15,613.57x = 23,400.23 × 13,604.12
  4. Step 4: Simplify right side
    15,613.57x = 318,339,351.93
  5. Step 5: Solve for x
    x = 318,339,351.93/15,613.57
  6. Step 6: Final answer
    x = 20,388.64

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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.