Home / 11,858.19-17,786.88-5,621.19

Finding the Fourth Proportional to 11,858.19, 17,786.88 and 5,621.19

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Solution

The fourth proportional to 11,858.19, 17,786.88 and 5,621.19 is: 8,431.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,858.19 : 17,786.88 = 5,621.19 : x
  2. Step 2: Convert to fraction form
    11,858.19/17,786.88 = 5,621.19/x
  3. Step 3: Cross multiply
    11,858.19x = 17,786.88 × 5,621.19
  4. Step 4: Simplify right side
    11,858.19x = 99,983,431.99
  5. Step 5: Solve for x
    x = 99,983,431.99/11,858.19
  6. Step 6: Final answer
    x = 8,431.59

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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.