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Finding the Fourth Proportional to 11,030.06, 15,212.66 and 8,905.02

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Solution

The fourth proportional to 11,030.06, 15,212.66 and 8,905.02 is: 12,281.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,030.06 : 15,212.66 = 8,905.02 : x
  2. Step 2: Convert to fraction form
    11,030.06/15,212.66 = 8,905.02/x
  3. Step 3: Cross multiply
    11,030.06x = 15,212.66 × 8,905.02
  4. Step 4: Simplify right side
    11,030.06x = 135,468,997.03
  5. Step 5: Solve for x
    x = 135,468,997.03/11,030.06
  6. Step 6: Final answer
    x = 12,281.81

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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.