Home / 13,600.56-18,785.88-11,219.16

Finding the Fourth Proportional to 13,600.56, 18,785.88 and 11,219.16

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Solution

The fourth proportional to 13,600.56, 18,785.88 and 11,219.16 is: 15,496.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600.56 : 18,785.88 = 11,219.16 : x
  2. Step 2: Convert to fraction form
    13,600.56/18,785.88 = 11,219.16/x
  3. Step 3: Cross multiply
    13,600.56x = 18,785.88 × 11,219.16
  4. Step 4: Simplify right side
    13,600.56x = 210,761,793.46
  5. Step 5: Solve for x
    x = 210,761,793.46/13,600.56
  6. Step 6: Final answer
    x = 15,496.55

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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.