Home / 17,621.13-26,429.16-5,137.80

Finding the Fourth Proportional to 17,621.13, 26,429.16 and 5,137.80

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Solution

The fourth proportional to 17,621.13, 26,429.16 and 5,137.80 is: 7,705.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,621.13 : 26,429.16 = 5,137.80 : x
  2. Step 2: Convert to fraction form
    17,621.13/26,429.16 = 5,137.80/x
  3. Step 3: Cross multiply
    17,621.13x = 26,429.16 × 5,137.80
  4. Step 4: Simplify right side
    17,621.13x = 135,787,738.25
  5. Step 5: Solve for x
    x = 135,787,738.25/17,621.13
  6. Step 6: Final answer
    x = 7,705.96

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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.