Home / 8,485.36-12,732.28-3,808.71

Finding the Fourth Proportional to 8,485.36, 12,732.28 and 3,808.71

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Solution

The fourth proportional to 8,485.36, 12,732.28 and 3,808.71 is: 5,714.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.36 : 12,732.28 = 3,808.71 : x
  2. Step 2: Convert to fraction form
    8,485.36/12,732.28 = 3,808.71/x
  3. Step 3: Cross multiply
    8,485.36x = 12,732.28 × 3,808.71
  4. Step 4: Simplify right side
    8,485.36x = 48,493,552.64
  5. Step 5: Solve for x
    x = 48,493,552.64/8,485.36
  6. Step 6: Final answer
    x = 5,714.97

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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.