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Finding the Fourth Proportional to 13,329.60, 19,965.60 and 11,601.60

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Solution

The fourth proportional to 13,329.60, 19,965.60 and 11,601.60 is: 17,377.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.60 : 19,965.60 = 11,601.60 : x
  2. Step 2: Convert to fraction form
    13,329.60/19,965.60 = 11,601.60/x
  3. Step 3: Cross multiply
    13,329.60x = 19,965.60 × 11,601.60
  4. Step 4: Simplify right side
    13,329.60x = 231,632,904.96
  5. Step 5: Solve for x
    x = 231,632,904.96/13,329.60
  6. Step 6: Final answer
    x = 17,377.33

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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.