Home / 13,618.94-18,794.38-7,650.61

Finding the Fourth Proportional to 13,618.94, 18,794.38 and 7,650.61

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Solution

The fourth proportional to 13,618.94, 18,794.38 and 7,650.61 is: 10,557.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,618.94 : 18,794.38 = 7,650.61 : x
  2. Step 2: Convert to fraction form
    13,618.94/18,794.38 = 7,650.61/x
  3. Step 3: Cross multiply
    13,618.94x = 18,794.38 × 7,650.61
  4. Step 4: Simplify right side
    13,618.94x = 143,788,540.37
  5. Step 5: Solve for x
    x = 143,788,540.37/13,618.94
  6. Step 6: Final answer
    x = 10,557.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.