Home / 11,928.05-17,859.12-8,997.47

Finding the Fourth Proportional to 11,928.05, 17,859.12 and 8,997.47

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Solution

The fourth proportional to 11,928.05, 17,859.12 and 8,997.47 is: 13,471.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.05 : 17,859.12 = 8,997.47 : x
  2. Step 2: Convert to fraction form
    11,928.05/17,859.12 = 8,997.47/x
  3. Step 3: Cross multiply
    11,928.05x = 17,859.12 × 8,997.47
  4. Step 4: Simplify right side
    11,928.05x = 160,686,896.43
  5. Step 5: Solve for x
    x = 160,686,896.43/11,928.05
  6. Step 6: Final answer
    x = 13,471.35

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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.