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Finding the Fourth Proportional to 13,503.44, 20,257.32 and 5,712.32

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Solution

The fourth proportional to 13,503.44, 20,257.32 and 5,712.32 is: 8,569.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,503.44 : 20,257.32 = 5,712.32 : x
  2. Step 2: Convert to fraction form
    13,503.44/20,257.32 = 5,712.32/x
  3. Step 3: Cross multiply
    13,503.44x = 20,257.32 × 5,712.32
  4. Step 4: Simplify right side
    13,503.44x = 115,716,294.18
  5. Step 5: Solve for x
    x = 115,716,294.18/13,503.44
  6. Step 6: Final answer
    x = 8,569.39

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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.