Home / 8,122.12-11,207.90-4,585.66

Finding the Fourth Proportional to 8,122.12, 11,207.90 and 4,585.66

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Solution

The fourth proportional to 8,122.12, 11,207.90 and 4,585.66 is: 6,327.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.12 : 11,207.90 = 4,585.66 : x
  2. Step 2: Convert to fraction form
    8,122.12/11,207.90 = 4,585.66/x
  3. Step 3: Cross multiply
    8,122.12x = 11,207.90 × 4,585.66
  4. Step 4: Simplify right side
    8,122.12x = 51,395,618.71
  5. Step 5: Solve for x
    x = 51,395,618.71/8,122.12
  6. Step 6: Final answer
    x = 6,327.86

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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.