Home / 7,961.25-10,986.54-4,425.30

Finding the Fourth Proportional to 7,961.25, 10,986.54 and 4,425.30

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Solution

The fourth proportional to 7,961.25, 10,986.54 and 4,425.30 is: 6,106.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.25 : 10,986.54 = 4,425.30 : x
  2. Step 2: Convert to fraction form
    7,961.25/10,986.54 = 4,425.30/x
  3. Step 3: Cross multiply
    7,961.25x = 10,986.54 × 4,425.30
  4. Step 4: Simplify right side
    7,961.25x = 48,618,735.46
  5. Step 5: Solve for x
    x = 48,618,735.46/7,961.25
  6. Step 6: Final answer
    x = 6,106.92

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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.