Home / 12,840.53-19,247.63-8,163.99

Finding the Fourth Proportional to 12,840.53, 19,247.63 and 8,163.99

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Solution

The fourth proportional to 12,840.53, 19,247.63 and 8,163.99 is: 12,237.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,840.53 : 19,247.63 = 8,163.99 : x
  2. Step 2: Convert to fraction form
    12,840.53/19,247.63 = 8,163.99/x
  3. Step 3: Cross multiply
    12,840.53x = 19,247.63 × 8,163.99
  4. Step 4: Simplify right side
    12,840.53x = 157,137,418.02
  5. Step 5: Solve for x
    x = 157,137,418.02/12,840.53
  6. Step 6: Final answer
    x = 12,237.62

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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.