Home / 7,887.41-11,831.11-3,209.96

Finding the Fourth Proportional to 7,887.41, 11,831.11 and 3,209.96

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Solution

The fourth proportional to 7,887.41, 11,831.11 and 3,209.96 is: 4,814.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.41 : 11,831.11 = 3,209.96 : x
  2. Step 2: Convert to fraction form
    7,887.41/11,831.11 = 3,209.96/x
  3. Step 3: Cross multiply
    7,887.41x = 11,831.11 × 3,209.96
  4. Step 4: Simplify right side
    7,887.41x = 37,977,389.86
  5. Step 5: Solve for x
    x = 37,977,389.86/7,887.41
  6. Step 6: Final answer
    x = 4,814.94

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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.