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Finding the Fourth Proportional to 11,181.58, 15,430.44 and 6,465.76

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Solution

The fourth proportional to 11,181.58, 15,430.44 and 6,465.76 is: 8,922.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181.58 : 15,430.44 = 6,465.76 : x
  2. Step 2: Convert to fraction form
    11,181.58/15,430.44 = 6,465.76/x
  3. Step 3: Cross multiply
    11,181.58x = 15,430.44 × 6,465.76
  4. Step 4: Simplify right side
    11,181.58x = 99,769,521.73
  5. Step 5: Solve for x
    x = 99,769,521.73/11,181.58
  6. Step 6: Final answer
    x = 8,922.67

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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.