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Finding the Fourth Proportional to 8,920.32, 12,297.22 and 6,259.48

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Solution

The fourth proportional to 8,920.32, 12,297.22 and 6,259.48 is: 8,629.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.32 : 12,297.22 = 6,259.48 : x
  2. Step 2: Convert to fraction form
    8,920.32/12,297.22 = 6,259.48/x
  3. Step 3: Cross multiply
    8,920.32x = 12,297.22 × 6,259.48
  4. Step 4: Simplify right side
    8,920.32x = 76,974,202.65
  5. Step 5: Solve for x
    x = 76,974,202.65/8,920.32
  6. Step 6: Final answer
    x = 8,629.09

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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.