Home / 11,744.38-16,206.85-6,438.88

Finding the Fourth Proportional to 11,744.38, 16,206.85 and 6,438.88

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Solution

The fourth proportional to 11,744.38, 16,206.85 and 6,438.88 is: 8,885.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,744.38 : 16,206.85 = 6,438.88 : x
  2. Step 2: Convert to fraction form
    11,744.38/16,206.85 = 6,438.88/x
  3. Step 3: Cross multiply
    11,744.38x = 16,206.85 × 6,438.88
  4. Step 4: Simplify right side
    11,744.38x = 104,353,962.33
  5. Step 5: Solve for x
    x = 104,353,962.33/11,744.38
  6. Step 6: Final answer
    x = 8,885.44

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Half scale
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Double scale
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Similar ratio
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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.