Home / 12,845.93-19,268.88-5,445.20

Finding the Fourth Proportional to 12,845.93, 19,268.88 and 5,445.20

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Solution

The fourth proportional to 12,845.93, 19,268.88 and 5,445.20 is: 8,167.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845.93 : 19,268.88 = 5,445.20 : x
  2. Step 2: Convert to fraction form
    12,845.93/19,268.88 = 5,445.20/x
  3. Step 3: Cross multiply
    12,845.93x = 19,268.88 × 5,445.20
  4. Step 4: Simplify right side
    12,845.93x = 104,922,809.03
  5. Step 5: Solve for x
    x = 104,922,809.03/12,845.93
  6. Step 6: Final answer
    x = 8,167.79

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Similar ratio
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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.