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Finding the Fourth Proportional to 13,403.70, 18,496.62 and 7,435.62

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Solution

The fourth proportional to 13,403.70, 18,496.62 and 7,435.62 is: 10,260.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.70 : 18,496.62 = 7,435.62 : x
  2. Step 2: Convert to fraction form
    13,403.70/18,496.62 = 7,435.62/x
  3. Step 3: Cross multiply
    13,403.70x = 18,496.62 × 7,435.62
  4. Step 4: Simplify right side
    13,403.70x = 137,533,837.60
  5. Step 5: Solve for x
    x = 137,533,837.60/13,403.70
  6. Step 6: Final answer
    x = 10,260.89

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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.