Home / 7,944.25-11,915.37-2,101.32

Finding the Fourth Proportional to 7,944.25, 11,915.37 and 2,101.32

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Solution

The fourth proportional to 7,944.25, 11,915.37 and 2,101.32 is: 3,151.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,944.25 : 11,915.37 = 2,101.32 : x
  2. Step 2: Convert to fraction form
    7,944.25/11,915.37 = 2,101.32/x
  3. Step 3: Cross multiply
    7,944.25x = 11,915.37 × 2,101.32
  4. Step 4: Simplify right side
    7,944.25x = 25,038,005.29
  5. Step 5: Solve for x
    x = 25,038,005.29/7,944.25
  6. Step 6: Final answer
    x = 3,151.71

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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.