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Finding the Fourth Proportional to 11,258.88, 16,888.32 and 6,817.65

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Solution

The fourth proportional to 11,258.88, 16,888.32 and 6,817.65 is: 10,226.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,258.88 : 16,888.32 = 6,817.65 : x
  2. Step 2: Convert to fraction form
    11,258.88/16,888.32 = 6,817.65/x
  3. Step 3: Cross multiply
    11,258.88x = 16,888.32 × 6,817.65
  4. Step 4: Simplify right side
    11,258.88x = 115,138,654.85
  5. Step 5: Solve for x
    x = 115,138,654.85/11,258.88
  6. Step 6: Final answer
    x = 10,226.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.