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Finding the Fourth Proportional to 8,499.66, 12,738.67 and 4,803.95

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Solution

The fourth proportional to 8,499.66, 12,738.67 and 4,803.95 is: 7,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,499.66 : 12,738.67 = 4,803.95 : x
  2. Step 2: Convert to fraction form
    8,499.66/12,738.67 = 4,803.95/x
  3. Step 3: Cross multiply
    8,499.66x = 12,738.67 × 4,803.95
  4. Step 4: Simplify right side
    8,499.66x = 61,195,889.89
  5. Step 5: Solve for x
    x = 61,195,889.89/8,499.66
  6. Step 6: Final answer
    x = 7,199.80

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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.