Home / 12,845.69-19,268.53-3,611.69

Finding the Fourth Proportional to 12,845.69, 19,268.53 and 3,611.69

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Solution

The fourth proportional to 12,845.69, 19,268.53 and 3,611.69 is: 5,417.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845.69 : 19,268.53 = 3,611.69 : x
  2. Step 2: Convert to fraction form
    12,845.69/19,268.53 = 3,611.69/x
  3. Step 3: Cross multiply
    12,845.69x = 19,268.53 × 3,611.69
  4. Step 4: Simplify right side
    12,845.69x = 69,591,957.12
  5. Step 5: Solve for x
    x = 69,591,957.12/12,845.69
  6. Step 6: Final answer
    x = 5,417.53

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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.