Home / 7,887.42-11,831.76-4,600.85

Finding the Fourth Proportional to 7,887.42, 11,831.76 and 4,600.85

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Solution

The fourth proportional to 7,887.42, 11,831.76 and 4,600.85 is: 6,901.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.42 : 11,831.76 = 4,600.85 : x
  2. Step 2: Convert to fraction form
    7,887.42/11,831.76 = 4,600.85/x
  3. Step 3: Cross multiply
    7,887.42x = 11,831.76 × 4,600.85
  4. Step 4: Simplify right side
    7,887.42x = 54,436,093.84
  5. Step 5: Solve for x
    x = 54,436,093.84/7,887.42
  6. Step 6: Final answer
    x = 6,901.63

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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.