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Finding the Fourth Proportional to 8,418.51, 12,627.41 and 4,530.51

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Solution

The fourth proportional to 8,418.51, 12,627.41 and 4,530.51 is: 6,795.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.51 : 12,627.41 = 4,530.51 : x
  2. Step 2: Convert to fraction form
    8,418.51/12,627.41 = 4,530.51/x
  3. Step 3: Cross multiply
    8,418.51x = 12,627.41 × 4,530.51
  4. Step 4: Simplify right side
    8,418.51x = 57,208,584.63
  5. Step 5: Solve for x
    x = 57,208,584.63/8,418.51
  6. Step 6: Final answer
    x = 6,795.57

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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.