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Finding the Fourth Proportional to 8,699.61, 13,049.40 and 3,152.94

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Solution

The fourth proportional to 8,699.61, 13,049.40 and 3,152.94 is: 4,729.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,699.61 : 13,049.40 = 3,152.94 : x
  2. Step 2: Convert to fraction form
    8,699.61/13,049.40 = 3,152.94/x
  3. Step 3: Cross multiply
    8,699.61x = 13,049.40 × 3,152.94
  4. Step 4: Simplify right side
    8,699.61x = 41,144,011.53
  5. Step 5: Solve for x
    x = 41,144,011.53/8,699.61
  6. Step 6: Final answer
    x = 4,729.41

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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.