Home / 13,363.32-18,431.34-11,250.12

Finding the Fourth Proportional to 13,363.32, 18,431.34 and 11,250.12

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Solution

The fourth proportional to 13,363.32, 18,431.34 and 11,250.12 is: 15,516.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,363.32 : 18,431.34 = 11,250.12 : x
  2. Step 2: Convert to fraction form
    13,363.32/18,431.34 = 11,250.12/x
  3. Step 3: Cross multiply
    13,363.32x = 18,431.34 × 11,250.12
  4. Step 4: Simplify right side
    13,363.32x = 207,354,786.76
  5. Step 5: Solve for x
    x = 207,354,786.76/13,363.32
  6. Step 6: Final answer
    x = 15,516.71

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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.