Home / 11,720.22-16,174.35-6,685.26

Finding the Fourth Proportional to 11,720.22, 16,174.35 and 6,685.26

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Solution

The fourth proportional to 11,720.22, 16,174.35 and 6,685.26 is: 9,225.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.22 : 16,174.35 = 6,685.26 : x
  2. Step 2: Convert to fraction form
    11,720.22/16,174.35 = 6,685.26/x
  3. Step 3: Cross multiply
    11,720.22x = 16,174.35 × 6,685.26
  4. Step 4: Simplify right side
    11,720.22x = 108,129,735.08
  5. Step 5: Solve for x
    x = 108,129,735.08/11,720.22
  6. Step 6: Final answer
    x = 9,225.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.