Home / 13,249.72-19,836.78-10,285.12

Finding the Fourth Proportional to 13,249.72, 19,836.78 and 10,285.12

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Solution

The fourth proportional to 13,249.72, 19,836.78 and 10,285.12 is: 15,398.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.72 : 19,836.78 = 10,285.12 : x
  2. Step 2: Convert to fraction form
    13,249.72/19,836.78 = 10,285.12/x
  3. Step 3: Cross multiply
    13,249.72x = 19,836.78 × 10,285.12
  4. Step 4: Simplify right side
    13,249.72x = 204,023,662.71
  5. Step 5: Solve for x
    x = 204,023,662.71/13,249.72
  6. Step 6: Final answer
    x = 15,398.34

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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.