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Finding the Fourth Proportional to 9,611.34, 13,263.65 and 5,419.59

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Solution

The fourth proportional to 9,611.34, 13,263.65 and 5,419.59 is: 7,479.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,611.34 : 13,263.65 = 5,419.59 : x
  2. Step 2: Convert to fraction form
    9,611.34/13,263.65 = 5,419.59/x
  3. Step 3: Cross multiply
    9,611.34x = 13,263.65 × 5,419.59
  4. Step 4: Simplify right side
    9,611.34x = 71,883,544.90
  5. Step 5: Solve for x
    x = 71,883,544.90/9,611.34
  6. Step 6: Final answer
    x = 7,479.03

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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.