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Finding the Fourth Proportional to 8,506.87, 11,738.79 and 4,729.73

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Solution

The fourth proportional to 8,506.87, 11,738.79 and 4,729.73 is: 6,526.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,506.87 : 11,738.79 = 4,729.73 : x
  2. Step 2: Convert to fraction form
    8,506.87/11,738.79 = 4,729.73/x
  3. Step 3: Cross multiply
    8,506.87x = 11,738.79 × 4,729.73
  4. Step 4: Simplify right side
    8,506.87x = 55,521,307.23
  5. Step 5: Solve for x
    x = 55,521,307.23/8,506.87
  6. Step 6: Final answer
    x = 6,526.64

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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.