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Finding the Fourth Proportional to 8,697.84, 13,047.77 and 3,153.79

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Solution

The fourth proportional to 8,697.84, 13,047.77 and 3,153.79 is: 4,731.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697.84 : 13,047.77 = 3,153.79 : x
  2. Step 2: Convert to fraction form
    8,697.84/13,047.77 = 3,153.79/x
  3. Step 3: Cross multiply
    8,697.84x = 13,047.77 × 3,153.79
  4. Step 4: Simplify right side
    8,697.84x = 41,149,926.55
  5. Step 5: Solve for x
    x = 41,149,926.55/8,697.84
  6. Step 6: Final answer
    x = 4,731.05

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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.