Home / 7,967.06-11,951.20-2,420.90

Finding the Fourth Proportional to 7,967.06, 11,951.20 and 2,420.90

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Solution

The fourth proportional to 7,967.06, 11,951.20 and 2,420.90 is: 3,631.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,967.06 : 11,951.20 = 2,420.90 : x
  2. Step 2: Convert to fraction form
    7,967.06/11,951.20 = 2,420.90/x
  3. Step 3: Cross multiply
    7,967.06x = 11,951.20 × 2,420.90
  4. Step 4: Simplify right side
    7,967.06x = 28,932,660.08
  5. Step 5: Solve for x
    x = 28,932,660.08/7,967.06
  6. Step 6: Final answer
    x = 3,631.54

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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.