Home / 11,720.24-16,170.74-6,682.63

Finding the Fourth Proportional to 11,720.24, 16,170.74 and 6,682.63

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Solution

The fourth proportional to 11,720.24, 16,170.74 and 6,682.63 is: 9,220.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.24 : 16,170.74 = 6,682.63 : x
  2. Step 2: Convert to fraction form
    11,720.24/16,170.74 = 6,682.63/x
  3. Step 3: Cross multiply
    11,720.24x = 16,170.74 × 6,682.63
  4. Step 4: Simplify right side
    11,720.24x = 108,063,008.31
  5. Step 5: Solve for x
    x = 108,063,008.31/11,720.24
  6. Step 6: Final answer
    x = 9,220.20

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Half scale
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Double scale
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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.