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Finding the Fourth Proportional to 8,803.79, 13,222.14 and 7,749.98

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Solution

The fourth proportional to 8,803.79, 13,222.14 and 7,749.98 is: 11,639.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,803.79 : 13,222.14 = 7,749.98 : x
  2. Step 2: Convert to fraction form
    8,803.79/13,222.14 = 7,749.98/x
  3. Step 3: Cross multiply
    8,803.79x = 13,222.14 × 7,749.98
  4. Step 4: Simplify right side
    8,803.79x = 102,471,274.97
  5. Step 5: Solve for x
    x = 102,471,274.97/8,803.79
  6. Step 6: Final answer
    x = 11,639.45

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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.