Home / 13,700.24-18,906.32-7,412.64

Finding the Fourth Proportional to 13,700.24, 18,906.32 and 7,412.64

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Solution

The fourth proportional to 13,700.24, 18,906.32 and 7,412.64 is: 10,229.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,700.24 : 18,906.32 = 7,412.64 : x
  2. Step 2: Convert to fraction form
    13,700.24/18,906.32 = 7,412.64/x
  3. Step 3: Cross multiply
    13,700.24x = 18,906.32 × 7,412.64
  4. Step 4: Simplify right side
    13,700.24x = 140,145,743.88
  5. Step 5: Solve for x
    x = 140,145,743.88/13,700.24
  6. Step 6: Final answer
    x = 10,229.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.