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Finding the Fourth Proportional to 13,273.60, 19,953.60 and 9,404.80

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Solution

The fourth proportional to 13,273.60, 19,953.60 and 9,404.80 is: 14,137.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,273.60 : 19,953.60 = 9,404.80 : x
  2. Step 2: Convert to fraction form
    13,273.60/19,953.60 = 9,404.80/x
  3. Step 3: Cross multiply
    13,273.60x = 19,953.60 × 9,404.80
  4. Step 4: Simplify right side
    13,273.60x = 187,659,617.28
  5. Step 5: Solve for x
    x = 187,659,617.28/13,273.60
  6. Step 6: Final answer
    x = 14,137.81

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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.