Home / 11,995.48-16,553.79-6,690.64

Finding the Fourth Proportional to 11,995.48, 16,553.79 and 6,690.64

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Solution

The fourth proportional to 11,995.48, 16,553.79 and 6,690.64 is: 9,233.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,995.48 : 16,553.79 = 6,690.64 : x
  2. Step 2: Convert to fraction form
    11,995.48/16,553.79 = 6,690.64/x
  3. Step 3: Cross multiply
    11,995.48x = 16,553.79 × 6,690.64
  4. Step 4: Simplify right side
    11,995.48x = 110,755,449.53
  5. Step 5: Solve for x
    x = 110,755,449.53/11,995.48
  6. Step 6: Final answer
    x = 9,233.10

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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.