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Finding the Fourth Proportional to 9,999.22, 13,799.03 and 5,523.09

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Solution

The fourth proportional to 9,999.22, 13,799.03 and 5,523.09 is: 7,621.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999.22 : 13,799.03 = 5,523.09 : x
  2. Step 2: Convert to fraction form
    9,999.22/13,799.03 = 5,523.09/x
  3. Step 3: Cross multiply
    9,999.22x = 13,799.03 × 5,523.09
  4. Step 4: Simplify right side
    9,999.22x = 76,213,215.61
  5. Step 5: Solve for x
    x = 76,213,215.61/9,999.22
  6. Step 6: Final answer
    x = 7,621.92

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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.