Home / 12,628.27-18,942.40-5,606.63

Finding the Fourth Proportional to 12,628.27, 18,942.40 and 5,606.63

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Solution

The fourth proportional to 12,628.27, 18,942.40 and 5,606.63 is: 8,409.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.27 : 18,942.40 = 5,606.63 : x
  2. Step 2: Convert to fraction form
    12,628.27/18,942.40 = 5,606.63/x
  3. Step 3: Cross multiply
    12,628.27x = 18,942.40 × 5,606.63
  4. Step 4: Simplify right side
    12,628.27x = 106,203,034.14
  5. Step 5: Solve for x
    x = 106,203,034.14/12,628.27
  6. Step 6: Final answer
    x = 8,409.95

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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.