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Finding the Fourth Proportional to 6,690.75, 9,193.28 and 6,258.82

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Solution

The fourth proportional to 6,690.75, 9,193.28 and 6,258.82 is: 8,599.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,690.75 : 9,193.28 = 6,258.82 : x
  2. Step 2: Convert to fraction form
    6,690.75/9,193.28 = 6,258.82/x
  3. Step 3: Cross multiply
    6,690.75x = 9,193.28 × 6,258.82
  4. Step 4: Simplify right side
    6,690.75x = 57,539,109.30
  5. Step 5: Solve for x
    x = 57,539,109.30/6,690.75
  6. Step 6: Final answer
    x = 8,599.80

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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.