Home / 11,738.34-16,204.08-8,215.38

Finding the Fourth Proportional to 11,738.34, 16,204.08 and 8,215.38

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Solution

The fourth proportional to 11,738.34, 16,204.08 and 8,215.38 is: 11,340.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,738.34 : 16,204.08 = 8,215.38 : x
  2. Step 2: Convert to fraction form
    11,738.34/16,204.08 = 8,215.38/x
  3. Step 3: Cross multiply
    11,738.34x = 16,204.08 × 8,215.38
  4. Step 4: Simplify right side
    11,738.34x = 133,122,674.75
  5. Step 5: Solve for x
    x = 133,122,674.75/11,738.34
  6. Step 6: Final answer
    x = 11,340.84

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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.