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Finding the Fourth Proportional to 8,416.48, 11,602.56 and 5,890.72

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Solution

The fourth proportional to 8,416.48, 11,602.56 and 5,890.72 is: 8,120.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,416.48 : 11,602.56 = 5,890.72 : x
  2. Step 2: Convert to fraction form
    8,416.48/11,602.56 = 5,890.72/x
  3. Step 3: Cross multiply
    8,416.48x = 11,602.56 × 5,890.72
  4. Step 4: Simplify right side
    8,416.48x = 68,347,432.24
  5. Step 5: Solve for x
    x = 68,347,432.24/8,416.48
  6. Step 6: Final answer
    x = 8,120.67

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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.