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Finding the Fourth Proportional to 13,699.29, 20,548.56 and 3,705.01

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Solution

The fourth proportional to 13,699.29, 20,548.56 and 3,705.01 is: 5,557.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,699.29 : 20,548.56 = 3,705.01 : x
  2. Step 2: Convert to fraction form
    13,699.29/20,548.56 = 3,705.01/x
  3. Step 3: Cross multiply
    13,699.29x = 20,548.56 × 3,705.01
  4. Step 4: Simplify right side
    13,699.29x = 76,132,499.02
  5. Step 5: Solve for x
    x = 76,132,499.02/13,699.29
  6. Step 6: Final answer
    x = 5,557.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.