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Finding the Fourth Proportional to 8,148.80, 12,223.10 and 2,602.07

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Solution

The fourth proportional to 8,148.80, 12,223.10 and 2,602.07 is: 3,903.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148.80 : 12,223.10 = 2,602.07 : x
  2. Step 2: Convert to fraction form
    8,148.80/12,223.10 = 2,602.07/x
  3. Step 3: Cross multiply
    8,148.80x = 12,223.10 × 2,602.07
  4. Step 4: Simplify right side
    8,148.80x = 31,805,379.36
  5. Step 5: Solve for x
    x = 31,805,379.36/8,148.80
  6. Step 6: Final answer
    x = 3,903.07

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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.