Home / 7,905.62-11,865.75-4,012.82

Finding the Fourth Proportional to 7,905.62, 11,865.75 and 4,012.82

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Solution

The fourth proportional to 7,905.62, 11,865.75 and 4,012.82 is: 6,022.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.62 : 11,865.75 = 4,012.82 : x
  2. Step 2: Convert to fraction form
    7,905.62/11,865.75 = 4,012.82/x
  3. Step 3: Cross multiply
    7,905.62x = 11,865.75 × 4,012.82
  4. Step 4: Simplify right side
    7,905.62x = 47,615,118.92
  5. Step 5: Solve for x
    x = 47,615,118.92/7,905.62
  6. Step 6: Final answer
    x = 6,022.95

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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.