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Finding the Fourth Proportional to 9,924.18, 13,695.60 and 5,447.88

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Solution

The fourth proportional to 9,924.18, 13,695.60 and 5,447.88 is: 7,518.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,924.18 : 13,695.60 = 5,447.88 : x
  2. Step 2: Convert to fraction form
    9,924.18/13,695.60 = 5,447.88/x
  3. Step 3: Cross multiply
    9,924.18x = 13,695.60 × 5,447.88
  4. Step 4: Simplify right side
    9,924.18x = 74,611,985.33
  5. Step 5: Solve for x
    x = 74,611,985.33/9,924.18
  6. Step 6: Final answer
    x = 7,518.20

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