Home / 13,369.05-18,449.17-7,400.97

Finding the Fourth Proportional to 13,369.05, 18,449.17 and 7,400.97

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Solution

The fourth proportional to 13,369.05, 18,449.17 and 7,400.97 is: 10,213.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369.05 : 18,449.17 = 7,400.97 : x
  2. Step 2: Convert to fraction form
    13,369.05/18,449.17 = 7,400.97/x
  3. Step 3: Cross multiply
    13,369.05x = 18,449.17 × 7,400.97
  4. Step 4: Simplify right side
    13,369.05x = 136,541,735.19
  5. Step 5: Solve for x
    x = 136,541,735.19/13,369.05
  6. Step 6: Final answer
    x = 10,213.27

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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.