Home / 11,039.46-15,224.08-8,517.56

Finding the Fourth Proportional to 11,039.46, 15,224.08 and 8,517.56

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Solution

The fourth proportional to 11,039.46, 15,224.08 and 8,517.56 is: 11,746.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,039.46 : 15,224.08 = 8,517.56 : x
  2. Step 2: Convert to fraction form
    11,039.46/15,224.08 = 8,517.56/x
  3. Step 3: Cross multiply
    11,039.46x = 15,224.08 × 8,517.56
  4. Step 4: Simplify right side
    11,039.46x = 129,672,014.84
  5. Step 5: Solve for x
    x = 129,672,014.84/11,039.46
  6. Step 6: Final answer
    x = 11,746.23

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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.