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Finding the Fourth Proportional to 12,551.25, 18,826.92 and 3,317.25

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Solution

The fourth proportional to 12,551.25, 18,826.92 and 3,317.25 is: 4,975.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551.25 : 18,826.92 = 3,317.25 : x
  2. Step 2: Convert to fraction form
    12,551.25/18,826.92 = 3,317.25/x
  3. Step 3: Cross multiply
    12,551.25x = 18,826.92 × 3,317.25
  4. Step 4: Simplify right side
    12,551.25x = 62,453,600.37
  5. Step 5: Solve for x
    x = 62,453,600.37/12,551.25
  6. Step 6: Final answer
    x = 4,975.89

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1.5x scale

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.