Home / 8,315.56-11,474.58-4,778.44

Finding the Fourth Proportional to 8,315.56, 11,474.58 and 4,778.44

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Solution

The fourth proportional to 8,315.56, 11,474.58 and 4,778.44 is: 6,593.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.56 : 11,474.58 = 4,778.44 : x
  2. Step 2: Convert to fraction form
    8,315.56/11,474.58 = 4,778.44/x
  3. Step 3: Cross multiply
    8,315.56x = 11,474.58 × 4,778.44
  4. Step 4: Simplify right side
    8,315.56x = 54,830,592.06
  5. Step 5: Solve for x
    x = 54,830,592.06/8,315.56
  6. Step 6: Final answer
    x = 6,593.73

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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.