Home / 12,340.29-18,491.06-8,393.43

Finding the Fourth Proportional to 12,340.29, 18,491.06 and 8,393.43

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Solution

The fourth proportional to 12,340.29, 18,491.06 and 8,393.43 is: 12,576.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340.29 : 18,491.06 = 8,393.43 : x
  2. Step 2: Convert to fraction form
    12,340.29/18,491.06 = 8,393.43/x
  3. Step 3: Cross multiply
    12,340.29x = 18,491.06 × 8,393.43
  4. Step 4: Simplify right side
    12,340.29x = 155,203,438.72
  5. Step 5: Solve for x
    x = 155,203,438.72/12,340.29
  6. Step 6: Final answer
    x = 12,576.97

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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.