Home / 8,221.16-11,345.30-4,684.44

Finding the Fourth Proportional to 8,221.16, 11,345.30 and 4,684.44

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Solution

The fourth proportional to 8,221.16, 11,345.30 and 4,684.44 is: 6,464.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,221.16 : 11,345.30 = 4,684.44 : x
  2. Step 2: Convert to fraction form
    8,221.16/11,345.30 = 4,684.44/x
  3. Step 3: Cross multiply
    8,221.16x = 11,345.30 × 4,684.44
  4. Step 4: Simplify right side
    8,221.16x = 53,146,377.13
  5. Step 5: Solve for x
    x = 53,146,377.13/8,221.16
  6. Step 6: Final answer
    x = 6,464.58

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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.