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Finding the Fourth Proportional to 13,367.20, 20,050.80 and 10,904.80

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Solution

The fourth proportional to 13,367.20, 20,050.80 and 10,904.80 is: 16,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,367.20 : 20,050.80 = 10,904.80 : x
  2. Step 2: Convert to fraction form
    13,367.20/20,050.80 = 10,904.80/x
  3. Step 3: Cross multiply
    13,367.20x = 20,050.80 × 10,904.80
  4. Step 4: Simplify right side
    13,367.20x = 218,649,963.84
  5. Step 5: Solve for x
    x = 218,649,963.84/13,367.20
  6. Step 6: Final answer
    x = 16,357.20

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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.