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Finding the Fourth Proportional to 7,021.44, 9,625.32 and 6,895.80

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Solution

The fourth proportional to 7,021.44, 9,625.32 and 6,895.80 is: 9,453.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.44 : 9,625.32 = 6,895.80 : x
  2. Step 2: Convert to fraction form
    7,021.44/9,625.32 = 6,895.80/x
  3. Step 3: Cross multiply
    7,021.44x = 9,625.32 × 6,895.80
  4. Step 4: Simplify right side
    7,021.44x = 66,374,281.66
  5. Step 5: Solve for x
    x = 66,374,281.66/7,021.44
  6. Step 6: Final answer
    x = 9,453.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.