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Finding the Fourth Proportional to 13,305.60, 18,273.60 and 11,577.60

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Solution

The fourth proportional to 13,305.60, 18,273.60 and 11,577.60 is: 15,900.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.60 : 18,273.60 = 11,577.60 : x
  2. Step 2: Convert to fraction form
    13,305.60/18,273.60 = 11,577.60/x
  3. Step 3: Cross multiply
    13,305.60x = 18,273.60 × 11,577.60
  4. Step 4: Simplify right side
    13,305.60x = 211,564,431.36
  5. Step 5: Solve for x
    x = 211,564,431.36/13,305.60
  6. Step 6: Final answer
    x = 15,900.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.