Home / 8,623.61-11,912.54-6,658.96

Finding the Fourth Proportional to 8,623.61, 11,912.54 and 6,658.96

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Solution

The fourth proportional to 8,623.61, 11,912.54 and 6,658.96 is: 9,198.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,623.61 : 11,912.54 = 6,658.96 : x
  2. Step 2: Convert to fraction form
    8,623.61/11,912.54 = 6,658.96/x
  3. Step 3: Cross multiply
    8,623.61x = 11,912.54 × 6,658.96
  4. Step 4: Simplify right side
    8,623.61x = 79,325,142.80
  5. Step 5: Solve for x
    x = 79,325,142.80/8,623.61
  6. Step 6: Final answer
    x = 9,198.60

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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.