Home / 18,103.40-27,138.09-9,335.96

Finding the Fourth Proportional to 18,103.40, 27,138.09 and 9,335.96

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Solution

The fourth proportional to 18,103.40, 27,138.09 and 9,335.96 is: 13,995.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,103.40 : 27,138.09 = 9,335.96 : x
  2. Step 2: Convert to fraction form
    18,103.40/27,138.09 = 9,335.96/x
  3. Step 3: Cross multiply
    18,103.40x = 27,138.09 × 9,335.96
  4. Step 4: Simplify right side
    18,103.40x = 253,360,122.72
  5. Step 5: Solve for x
    x = 253,360,122.72/18,103.40
  6. Step 6: Final answer
    x = 13,995.17

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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.