Home / 13,226.43-18,252.42-7,258.20

Finding the Fourth Proportional to 13,226.43, 18,252.42 and 7,258.20

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Solution

The fourth proportional to 13,226.43, 18,252.42 and 7,258.20 is: 10,016.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,226.43 : 18,252.42 = 7,258.20 : x
  2. Step 2: Convert to fraction form
    13,226.43/18,252.42 = 7,258.20/x
  3. Step 3: Cross multiply
    13,226.43x = 18,252.42 × 7,258.20
  4. Step 4: Simplify right side
    13,226.43x = 132,479,742.06
  5. Step 5: Solve for x
    x = 132,479,742.06/13,226.43
  6. Step 6: Final answer
    x = 10,016.29

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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.