Home / 8,235.52-12,338.91-6,857.72

Finding the Fourth Proportional to 8,235.52, 12,338.91 and 6,857.72

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Solution

The fourth proportional to 8,235.52, 12,338.91 and 6,857.72 is: 10,274.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,235.52 : 12,338.91 = 6,857.72 : x
  2. Step 2: Convert to fraction form
    8,235.52/12,338.91 = 6,857.72/x
  3. Step 3: Cross multiply
    8,235.52x = 12,338.91 × 6,857.72
  4. Step 4: Simplify right side
    8,235.52x = 84,616,789.89
  5. Step 5: Solve for x
    x = 84,616,789.89/8,235.52
  6. Step 6: Final answer
    x = 10,274.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.