Home / 17,821.62-26,720.28-9,039.60

Finding the Fourth Proportional to 17,821.62, 26,720.28 and 9,039.60

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Solution

The fourth proportional to 17,821.62, 26,720.28 and 9,039.60 is: 13,553.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,821.62 : 26,720.28 = 9,039.60 : x
  2. Step 2: Convert to fraction form
    17,821.62/26,720.28 = 9,039.60/x
  3. Step 3: Cross multiply
    17,821.62x = 26,720.28 × 9,039.60
  4. Step 4: Simplify right side
    17,821.62x = 241,540,643.09
  5. Step 5: Solve for x
    x = 241,540,643.09/17,821.62
  6. Step 6: Final answer
    x = 13,553.24

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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.