Home / 8,422.33-11,622.67-4,645.86

Finding the Fourth Proportional to 8,422.33, 11,622.67 and 4,645.86

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Solution

The fourth proportional to 8,422.33, 11,622.67 and 4,645.86 is: 6,411.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.33 : 11,622.67 = 4,645.86 : x
  2. Step 2: Convert to fraction form
    8,422.33/11,622.67 = 4,645.86/x
  3. Step 3: Cross multiply
    8,422.33x = 11,622.67 × 4,645.86
  4. Step 4: Simplify right side
    8,422.33x = 53,997,297.65
  5. Step 5: Solve for x
    x = 53,997,297.65/8,422.33
  6. Step 6: Final answer
    x = 6,411.21

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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.