Home / 11,743.70-16,206.31-6,438.56

Finding the Fourth Proportional to 11,743.70, 16,206.31 and 6,438.56

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Solution

The fourth proportional to 11,743.70, 16,206.31 and 6,438.56 is: 8,885.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,743.70 : 16,206.31 = 6,438.56 : x
  2. Step 2: Convert to fraction form
    11,743.70/16,206.31 = 6,438.56/x
  3. Step 3: Cross multiply
    11,743.70x = 16,206.31 × 6,438.56
  4. Step 4: Simplify right side
    11,743.70x = 104,345,299.31
  5. Step 5: Solve for x
    x = 104,345,299.31/11,743.70
  6. Step 6: Final answer
    x = 8,885.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.