Home / 12,529.11-18,790.63-4,206.97

Finding the Fourth Proportional to 12,529.11, 18,790.63 and 4,206.97

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Solution

The fourth proportional to 12,529.11, 18,790.63 and 4,206.97 is: 6,309.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529.11 : 18,790.63 = 4,206.97 : x
  2. Step 2: Convert to fraction form
    12,529.11/18,790.63 = 4,206.97/x
  3. Step 3: Cross multiply
    12,529.11x = 18,790.63 × 4,206.97
  4. Step 4: Simplify right side
    12,529.11x = 79,051,629.66
  5. Step 5: Solve for x
    x = 79,051,629.66/12,529.11
  6. Step 6: Final answer
    x = 6,309.44

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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.