Home / 7,913.76-11,872.40-2,983.44

Finding the Fourth Proportional to 7,913.76, 11,872.40 and 2,983.44

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Solution

The fourth proportional to 7,913.76, 11,872.40 and 2,983.44 is: 4,475.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.76 : 11,872.40 = 2,983.44 : x
  2. Step 2: Convert to fraction form
    7,913.76/11,872.40 = 2,983.44/x
  3. Step 3: Cross multiply
    7,913.76x = 11,872.40 × 2,983.44
  4. Step 4: Simplify right side
    7,913.76x = 35,420,622.66
  5. Step 5: Solve for x
    x = 35,420,622.66/7,913.76
  6. Step 6: Final answer
    x = 4,475.83

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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.