Home / 7,831.60-11,740.44-4,712.56

Finding the Fourth Proportional to 7,831.60, 11,740.44 and 4,712.56

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Solution

The fourth proportional to 7,831.60, 11,740.44 and 4,712.56 is: 7,064.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.60 : 11,740.44 = 4,712.56 : x
  2. Step 2: Convert to fraction form
    7,831.60/11,740.44 = 4,712.56/x
  3. Step 3: Cross multiply
    7,831.60x = 11,740.44 × 4,712.56
  4. Step 4: Simplify right side
    7,831.60x = 55,327,527.93
  5. Step 5: Solve for x
    x = 55,327,527.93/7,831.60
  6. Step 6: Final answer
    x = 7,064.65

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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.