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Finding the Fourth Proportional to 13,474.09, 18,594.21 and 7,505.70

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Solution

The fourth proportional to 13,474.09, 18,594.21 and 7,505.70 is: 10,357.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,474.09 : 18,594.21 = 7,505.70 : x
  2. Step 2: Convert to fraction form
    13,474.09/18,594.21 = 7,505.70/x
  3. Step 3: Cross multiply
    13,474.09x = 18,594.21 × 7,505.70
  4. Step 4: Simplify right side
    13,474.09x = 139,562,562.00
  5. Step 5: Solve for x
    x = 139,562,562.00/13,474.09
  6. Step 6: Final answer
    x = 10,357.85

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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.