Home / 7,887.87-11,831.85-5,236.38

Finding the Fourth Proportional to 7,887.87, 11,831.85 and 5,236.38

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Solution

The fourth proportional to 7,887.87, 11,831.85 and 5,236.38 is: 7,854.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.87 : 11,831.85 = 5,236.38 : x
  2. Step 2: Convert to fraction form
    7,887.87/11,831.85 = 5,236.38/x
  3. Step 3: Cross multiply
    7,887.87x = 11,831.85 × 5,236.38
  4. Step 4: Simplify right side
    7,887.87x = 61,956,062.70
  5. Step 5: Solve for x
    x = 61,956,062.70/7,887.87
  6. Step 6: Final answer
    x = 7,854.60

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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.