Home / 13,170.22-19,754.80-7,258.82

Finding the Fourth Proportional to 13,170.22, 19,754.80 and 7,258.82

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Solution

The fourth proportional to 13,170.22, 19,754.80 and 7,258.82 is: 10,887.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.22 : 19,754.80 = 7,258.82 : x
  2. Step 2: Convert to fraction form
    13,170.22/19,754.80 = 7,258.82/x
  3. Step 3: Cross multiply
    13,170.22x = 19,754.80 × 7,258.82
  4. Step 4: Simplify right side
    13,170.22x = 143,396,568.58
  5. Step 5: Solve for x
    x = 143,396,568.58/13,170.22
  6. Step 6: Final answer
    x = 10,887.94

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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.