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Finding the Fourth Proportional to 13,333.56, 18,400.56 and 7,365.48

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Solution

The fourth proportional to 13,333.56, 18,400.56 and 7,365.48 is: 10,164.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333.56 : 18,400.56 = 7,365.48 : x
  2. Step 2: Convert to fraction form
    13,333.56/18,400.56 = 7,365.48/x
  3. Step 3: Cross multiply
    13,333.56x = 18,400.56 × 7,365.48
  4. Step 4: Simplify right side
    13,333.56x = 135,528,956.67
  5. Step 5: Solve for x
    x = 135,528,956.67/13,333.56
  6. Step 6: Final answer
    x = 10,164.50

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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.