Home / 7,972.43-11,000.30-4,615.05

Finding the Fourth Proportional to 7,972.43, 11,000.30 and 4,615.05

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Solution

The fourth proportional to 7,972.43, 11,000.30 and 4,615.05 is: 6,367.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972.43 : 11,000.30 = 4,615.05 : x
  2. Step 2: Convert to fraction form
    7,972.43/11,000.30 = 4,615.05/x
  3. Step 3: Cross multiply
    7,972.43x = 11,000.30 × 4,615.05
  4. Step 4: Simplify right side
    7,972.43x = 50,766,911.44
  5. Step 5: Solve for x
    x = 50,766,911.44/7,972.43
  6. Step 6: Final answer
    x = 6,367.81

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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.