Home / 13,617.36-18,793.62-7,649.28

Finding the Fourth Proportional to 13,617.36, 18,793.62 and 7,649.28

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Solution

The fourth proportional to 13,617.36, 18,793.62 and 7,649.28 is: 10,556.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617.36 : 18,793.62 = 7,649.28 : x
  2. Step 2: Convert to fraction form
    13,617.36/18,793.62 = 7,649.28/x
  3. Step 3: Cross multiply
    13,617.36x = 18,793.62 × 7,649.28
  4. Step 4: Simplify right side
    13,617.36x = 143,757,661.59
  5. Step 5: Solve for x
    x = 143,757,661.59/13,617.36
  6. Step 6: Final answer
    x = 10,556.94

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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.