Home / 18,258.36-27,387.58-7,170.28

Finding the Fourth Proportional to 18,258.36, 27,387.58 and 7,170.28

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Solution

The fourth proportional to 18,258.36, 27,387.58 and 7,170.28 is: 10,755.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,258.36 : 27,387.58 = 7,170.28 : x
  2. Step 2: Convert to fraction form
    18,258.36/27,387.58 = 7,170.28/x
  3. Step 3: Cross multiply
    18,258.36x = 27,387.58 × 7,170.28
  4. Step 4: Simplify right side
    18,258.36x = 196,376,617.12
  5. Step 5: Solve for x
    x = 196,376,617.12/18,258.36
  6. Step 6: Final answer
    x = 10,755.44

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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.