Home / 8,189.86-11,301.55-4,831.90

Finding the Fourth Proportional to 8,189.86, 11,301.55 and 4,831.90

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Solution

The fourth proportional to 8,189.86, 11,301.55 and 4,831.90 is: 6,667.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.86 : 11,301.55 = 4,831.90 : x
  2. Step 2: Convert to fraction form
    8,189.86/11,301.55 = 4,831.90/x
  3. Step 3: Cross multiply
    8,189.86x = 11,301.55 × 4,831.90
  4. Step 4: Simplify right side
    8,189.86x = 54,607,996.27
  5. Step 5: Solve for x
    x = 54,607,996.27/8,189.86
  6. Step 6: Final answer
    x = 6,667.76

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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.