Home / 11,983.92-16,538.54-6,678.96

Finding the Fourth Proportional to 11,983.92, 16,538.54 and 6,678.96

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Solution

The fourth proportional to 11,983.92, 16,538.54 and 6,678.96 is: 9,217.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,983.92 : 16,538.54 = 6,678.96 : x
  2. Step 2: Convert to fraction form
    11,983.92/16,538.54 = 6,678.96/x
  3. Step 3: Cross multiply
    11,983.92x = 16,538.54 × 6,678.96
  4. Step 4: Simplify right side
    11,983.92x = 110,460,247.12
  5. Step 5: Solve for x
    x = 110,460,247.12/11,983.92
  6. Step 6: Final answer
    x = 9,217.37

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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.