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Finding the Fourth Proportional to 13,362.50, 20,047.18 and 5,042.60

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Solution

The fourth proportional to 13,362.50, 20,047.18 and 5,042.60 is: 7,565.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.50 : 20,047.18 = 5,042.60 : x
  2. Step 2: Convert to fraction form
    13,362.50/20,047.18 = 5,042.60/x
  3. Step 3: Cross multiply
    13,362.50x = 20,047.18 × 5,042.60
  4. Step 4: Simplify right side
    13,362.50x = 101,089,909.87
  5. Step 5: Solve for x
    x = 101,089,909.87/13,362.50
  6. Step 6: Final answer
    x = 7,565.19

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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.