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Finding the Fourth Proportional to 6,474.78, 8,940.22 and 5,056.01

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Solution

The fourth proportional to 6,474.78, 8,940.22 and 5,056.01 is: 6,981.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,474.78 : 8,940.22 = 5,056.01 : x
  2. Step 2: Convert to fraction form
    6,474.78/8,940.22 = 5,056.01/x
  3. Step 3: Cross multiply
    6,474.78x = 8,940.22 × 5,056.01
  4. Step 4: Simplify right side
    6,474.78x = 45,201,797.02
  5. Step 5: Solve for x
    x = 45,201,797.02/6,474.78
  6. Step 6: Final answer
    x = 6,981.21

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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.