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Finding the Fourth Proportional to 13,303.68, 18,350.96 and 7,922.54

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Solution

The fourth proportional to 13,303.68, 18,350.96 and 7,922.54 is: 10,928.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,303.68 : 18,350.96 = 7,922.54 : x
  2. Step 2: Convert to fraction form
    13,303.68/18,350.96 = 7,922.54/x
  3. Step 3: Cross multiply
    13,303.68x = 18,350.96 × 7,922.54
  4. Step 4: Simplify right side
    13,303.68x = 145,386,220.90
  5. Step 5: Solve for x
    x = 145,386,220.90/13,303.68
  6. Step 6: Final answer
    x = 10,928.27

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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.