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Finding the Fourth Proportional to 12,015.20, 16,581.02 and 6,710.22

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Solution

The fourth proportional to 12,015.20, 16,581.02 and 6,710.22 is: 9,260.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.20 : 16,581.02 = 6,710.22 : x
  2. Step 2: Convert to fraction form
    12,015.20/16,581.02 = 6,710.22/x
  3. Step 3: Cross multiply
    12,015.20x = 16,581.02 × 6,710.22
  4. Step 4: Simplify right side
    12,015.20x = 111,262,258.47
  5. Step 5: Solve for x
    x = 111,262,258.47/12,015.20
  6. Step 6: Final answer
    x = 9,260.12

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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.