Home / 12,518.75-18,779.75-4,626.82

Finding the Fourth Proportional to 12,518.75, 18,779.75 and 4,626.82

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Solution

The fourth proportional to 12,518.75, 18,779.75 and 4,626.82 is: 6,940.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,518.75 : 18,779.75 = 4,626.82 : x
  2. Step 2: Convert to fraction form
    12,518.75/18,779.75 = 4,626.82/x
  3. Step 3: Cross multiply
    12,518.75x = 18,779.75 × 4,626.82
  4. Step 4: Simplify right side
    12,518.75x = 86,890,540.59
  5. Step 5: Solve for x
    x = 86,890,540.59/12,518.75
  6. Step 6: Final answer
    x = 6,940.83

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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.