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Finding the Fourth Proportional to 13,773.21, 19,006.95 and 7,485.58

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Solution

The fourth proportional to 13,773.21, 19,006.95 and 7,485.58 is: 10,330.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,773.21 : 19,006.95 = 7,485.58 : x
  2. Step 2: Convert to fraction form
    13,773.21/19,006.95 = 7,485.58/x
  3. Step 3: Cross multiply
    13,773.21x = 19,006.95 × 7,485.58
  4. Step 4: Simplify right side
    13,773.21x = 142,278,044.78
  5. Step 5: Solve for x
    x = 142,278,044.78/13,773.21
  6. Step 6: Final answer
    x = 10,330.06

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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.