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Finding the Fourth Proportional to 16,381.22, 22,606.72 and 8,929.22

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Solution

The fourth proportional to 16,381.22, 22,606.72 and 8,929.22 is: 12,322.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,381.22 : 22,606.72 = 8,929.22 : x
  2. Step 2: Convert to fraction form
    16,381.22/22,606.72 = 8,929.22/x
  3. Step 3: Cross multiply
    16,381.22x = 22,606.72 × 8,929.22
  4. Step 4: Simplify right side
    16,381.22x = 201,860,376.36
  5. Step 5: Solve for x
    x = 201,860,376.36/16,381.22
  6. Step 6: Final answer
    x = 12,322.67

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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.