Home / 12,850.77-19,261.99-8,406.60

Finding the Fourth Proportional to 12,850.77, 19,261.99 and 8,406.60

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Solution

The fourth proportional to 12,850.77, 19,261.99 and 8,406.60 is: 12,600.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,850.77 : 19,261.99 = 8,406.60 : x
  2. Step 2: Convert to fraction form
    12,850.77/19,261.99 = 8,406.60/x
  3. Step 3: Cross multiply
    12,850.77x = 19,261.99 × 8,406.60
  4. Step 4: Simplify right side
    12,850.77x = 161,927,845.13
  5. Step 5: Solve for x
    x = 161,927,845.13/12,850.77
  6. Step 6: Final answer
    x = 12,600.63

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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.