Home / 16,720.62-25,053.58-11,781.64

Finding the Fourth Proportional to 16,720.62, 25,053.58 and 11,781.64

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Solution

The fourth proportional to 16,720.62, 25,053.58 and 11,781.64 is: 17,653.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,720.62 : 25,053.58 = 11,781.64 : x
  2. Step 2: Convert to fraction form
    16,720.62/25,053.58 = 11,781.64/x
  3. Step 3: Cross multiply
    16,720.62x = 25,053.58 × 11,781.64
  4. Step 4: Simplify right side
    16,720.62x = 295,172,260.27
  5. Step 5: Solve for x
    x = 295,172,260.27/16,720.62
  6. Step 6: Final answer
    x = 17,653.19

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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.