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Finding the Fourth Proportional to 13,493.80, 20,208.30 and 10,901.80

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Solution

The fourth proportional to 13,493.80, 20,208.30 and 10,901.80 is: 16,326.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,493.80 : 20,208.30 = 10,901.80 : x
  2. Step 2: Convert to fraction form
    13,493.80/20,208.30 = 10,901.80/x
  3. Step 3: Cross multiply
    13,493.80x = 20,208.30 × 10,901.80
  4. Step 4: Simplify right side
    13,493.80x = 220,306,844.94
  5. Step 5: Solve for x
    x = 220,306,844.94/13,493.80
  6. Step 6: Final answer
    x = 16,326.52

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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.