Home / 11,771.08-17,629.72-5,619.40

Finding the Fourth Proportional to 11,771.08, 17,629.72 and 5,619.40

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Solution

The fourth proportional to 11,771.08, 17,629.72 and 5,619.40 is: 8,416.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,771.08 : 17,629.72 = 5,619.40 : x
  2. Step 2: Convert to fraction form
    11,771.08/17,629.72 = 5,619.40/x
  3. Step 3: Cross multiply
    11,771.08x = 17,629.72 × 5,619.40
  4. Step 4: Simplify right side
    11,771.08x = 99,068,448.57
  5. Step 5: Solve for x
    x = 99,068,448.57/11,771.08
  6. Step 6: Final answer
    x = 8,416.26

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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.