Home / 13,249.66-18,284.79-7,280.97

Finding the Fourth Proportional to 13,249.66, 18,284.79 and 7,280.97

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Solution

The fourth proportional to 13,249.66, 18,284.79 and 7,280.97 is: 10,047.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.66 : 18,284.79 = 7,280.97 : x
  2. Step 2: Convert to fraction form
    13,249.66/18,284.79 = 7,280.97/x
  3. Step 3: Cross multiply
    13,249.66x = 18,284.79 × 7,280.97
  4. Step 4: Simplify right side
    13,249.66x = 133,131,007.45
  5. Step 5: Solve for x
    x = 133,131,007.45/13,249.66
  6. Step 6: Final answer
    x = 10,047.88

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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.