Home / 11,743.78-16,206.41-6,438.48

Finding the Fourth Proportional to 11,743.78, 16,206.41 and 6,438.48

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Solution

The fourth proportional to 11,743.78, 16,206.41 and 6,438.48 is: 8,885.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,743.78 : 16,206.41 = 6,438.48 : x
  2. Step 2: Convert to fraction form
    11,743.78/16,206.41 = 6,438.48/x
  3. Step 3: Cross multiply
    11,743.78x = 16,206.41 × 6,438.48
  4. Step 4: Simplify right side
    11,743.78x = 104,344,703.27
  5. Step 5: Solve for x
    x = 104,344,703.27/11,743.78
  6. Step 6: Final answer
    x = 8,885.10

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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.