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Finding the Fourth Proportional to 13,530.77, 20,296.16 and 8,880.20

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Solution

The fourth proportional to 13,530.77, 20,296.16 and 8,880.20 is: 13,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530.77 : 20,296.16 = 8,880.20 : x
  2. Step 2: Convert to fraction form
    13,530.77/20,296.16 = 8,880.20/x
  3. Step 3: Cross multiply
    13,530.77x = 20,296.16 × 8,880.20
  4. Step 4: Simplify right side
    13,530.77x = 180,233,814.15
  5. Step 5: Solve for x
    x = 180,233,814.15/13,530.77
  6. Step 6: Final answer
    x = 13,320.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.