Home / 13,221.27-19,834.34-10,777.77

Finding the Fourth Proportional to 13,221.27, 19,834.34 and 10,777.77

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Solution

The fourth proportional to 13,221.27, 19,834.34 and 10,777.77 is: 16,168.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,221.27 : 19,834.34 = 10,777.77 : x
  2. Step 2: Convert to fraction form
    13,221.27/19,834.34 = 10,777.77/x
  3. Step 3: Cross multiply
    13,221.27x = 19,834.34 × 10,777.77
  4. Step 4: Simplify right side
    13,221.27x = 213,769,900.73
  5. Step 5: Solve for x
    x = 213,769,900.73/13,221.27
  6. Step 6: Final answer
    x = 16,168.64

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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.