Home / 19,169.82-28,781.64-9,816.57

Finding the Fourth Proportional to 19,169.82, 28,781.64 and 9,816.57

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Solution

The fourth proportional to 19,169.82, 28,781.64 and 9,816.57 is: 14,738.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,169.82 : 28,781.64 = 9,816.57 : x
  2. Step 2: Convert to fraction form
    19,169.82/28,781.64 = 9,816.57/x
  3. Step 3: Cross multiply
    19,169.82x = 28,781.64 × 9,816.57
  4. Step 4: Simplify right side
    19,169.82x = 282,536,983.77
  5. Step 5: Solve for x
    x = 282,536,983.77/19,169.82
  6. Step 6: Final answer
    x = 14,738.64

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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.