Home / 7,474.33-10,321.67-6,405.94

Finding the Fourth Proportional to 7,474.33, 10,321.67 and 6,405.94

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Solution

The fourth proportional to 7,474.33, 10,321.67 and 6,405.94 is: 8,846.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.33 : 10,321.67 = 6,405.94 : x
  2. Step 2: Convert to fraction form
    7,474.33/10,321.67 = 6,405.94/x
  3. Step 3: Cross multiply
    7,474.33x = 10,321.67 × 6,405.94
  4. Step 4: Simplify right side
    7,474.33x = 66,119,915.08
  5. Step 5: Solve for x
    x = 66,119,915.08/7,474.33
  6. Step 6: Final answer
    x = 8,846.27

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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.