Home / 9,218.79-12,711.88-6,229.44

Finding the Fourth Proportional to 9,218.79, 12,711.88 and 6,229.44

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Solution

The fourth proportional to 9,218.79, 12,711.88 and 6,229.44 is: 8,589.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,218.79 : 12,711.88 = 6,229.44 : x
  2. Step 2: Convert to fraction form
    9,218.79/12,711.88 = 6,229.44/x
  3. Step 3: Cross multiply
    9,218.79x = 12,711.88 × 6,229.44
  4. Step 4: Simplify right side
    9,218.79x = 79,187,893.75
  5. Step 5: Solve for x
    x = 79,187,893.75/9,218.79
  6. Step 6: Final answer
    x = 8,589.84

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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.