Home / 12,618.75-18,930.56-5,693.25

Finding the Fourth Proportional to 12,618.75, 18,930.56 and 5,693.25

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Solution

The fourth proportional to 12,618.75, 18,930.56 and 5,693.25 is: 8,540.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618.75 : 18,930.56 = 5,693.25 : x
  2. Step 2: Convert to fraction form
    12,618.75/18,930.56 = 5,693.25/x
  3. Step 3: Cross multiply
    12,618.75x = 18,930.56 × 5,693.25
  4. Step 4: Simplify right side
    12,618.75x = 107,776,382.25
  5. Step 5: Solve for x
    x = 107,776,382.25/12,618.75
  6. Step 6: Final answer
    x = 8,540.97

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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.