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Finding the Fourth Proportional to 13,033.60, 19,551.60 and 5,240.80

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Solution

The fourth proportional to 13,033.60, 19,551.60 and 5,240.80 is: 7,861.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,033.60 : 19,551.60 = 5,240.80 : x
  2. Step 2: Convert to fraction form
    13,033.60/19,551.60 = 5,240.80/x
  3. Step 3: Cross multiply
    13,033.60x = 19,551.60 × 5,240.80
  4. Step 4: Simplify right side
    13,033.60x = 102,466,025.28
  5. Step 5: Solve for x
    x = 102,466,025.28/13,033.60
  6. Step 6: Final answer
    x = 7,861.68

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1.5x scale

Why These Related Problems?

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