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Finding the Fourth Proportional to 12,510.45, 18,764.46 and 3,276.45

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Solution

The fourth proportional to 12,510.45, 18,764.46 and 3,276.45 is: 4,914.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,510.45 : 18,764.46 = 3,276.45 : x
  2. Step 2: Convert to fraction form
    12,510.45/18,764.46 = 3,276.45/x
  3. Step 3: Cross multiply
    12,510.45x = 18,764.46 × 3,276.45
  4. Step 4: Simplify right side
    12,510.45x = 61,480,814.97
  5. Step 5: Solve for x
    x = 61,480,814.97/12,510.45
  6. Step 6: Final answer
    x = 4,914.36

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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.