Home / 17,908.12-26,864.94-9,138.28

Finding the Fourth Proportional to 17,908.12, 26,864.94 and 9,138.28

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Solution

The fourth proportional to 17,908.12, 26,864.94 and 9,138.28 is: 13,708.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,908.12 : 26,864.94 = 9,138.28 : x
  2. Step 2: Convert to fraction form
    17,908.12/26,864.94 = 9,138.28/x
  3. Step 3: Cross multiply
    17,908.12x = 26,864.94 × 9,138.28
  4. Step 4: Simplify right side
    17,908.12x = 245,499,343.90
  5. Step 5: Solve for x
    x = 245,499,343.90/17,908.12
  6. Step 6: Final answer
    x = 13,708.83

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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.