Home / 11,678.96-17,518.12-3,887.92

Finding the Fourth Proportional to 11,678.96, 17,518.12 and 3,887.92

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Solution

The fourth proportional to 11,678.96, 17,518.12 and 3,887.92 is: 5,831.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,678.96 : 17,518.12 = 3,887.92 : x
  2. Step 2: Convert to fraction form
    11,678.96/17,518.12 = 3,887.92/x
  3. Step 3: Cross multiply
    11,678.96x = 17,518.12 × 3,887.92
  4. Step 4: Simplify right side
    11,678.96x = 68,109,049.11
  5. Step 5: Solve for x
    x = 68,109,049.11/11,678.96
  6. Step 6: Final answer
    x = 5,831.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.