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Finding the Fourth Proportional to 13,410.06, 20,106.68 and 4,645.68

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Solution

The fourth proportional to 13,410.06, 20,106.68 and 4,645.68 is: 6,965.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.06 : 20,106.68 = 4,645.68 : x
  2. Step 2: Convert to fraction form
    13,410.06/20,106.68 = 4,645.68/x
  3. Step 3: Cross multiply
    13,410.06x = 20,106.68 × 4,645.68
  4. Step 4: Simplify right side
    13,410.06x = 93,409,201.14
  5. Step 5: Solve for x
    x = 93,409,201.14/13,410.06
  6. Step 6: Final answer
    x = 6,965.61

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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.