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Finding the Fourth Proportional to 9,555.66, 13,186.55 and 5,729.46

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Solution

The fourth proportional to 9,555.66, 13,186.55 and 5,729.46 is: 7,906.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,555.66 : 13,186.55 = 5,729.46 : x
  2. Step 2: Convert to fraction form
    9,555.66/13,186.55 = 5,729.46/x
  3. Step 3: Cross multiply
    9,555.66x = 13,186.55 × 5,729.46
  4. Step 4: Simplify right side
    9,555.66x = 75,551,810.76
  5. Step 5: Solve for x
    x = 75,551,810.76/9,555.66
  6. Step 6: Final answer
    x = 7,906.50

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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.