Home / 12,741.95-19,112.93-3,976.87

Finding the Fourth Proportional to 12,741.95, 19,112.93 and 3,976.87

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Solution

The fourth proportional to 12,741.95, 19,112.93 and 3,976.87 is: 5,965.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,741.95 : 19,112.93 = 3,976.87 : x
  2. Step 2: Convert to fraction form
    12,741.95/19,112.93 = 3,976.87/x
  3. Step 3: Cross multiply
    12,741.95x = 19,112.93 × 3,976.87
  4. Step 4: Simplify right side
    12,741.95x = 76,009,637.93
  5. Step 5: Solve for x
    x = 76,009,637.93/12,741.95
  6. Step 6: Final answer
    x = 5,965.31

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Double scale
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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.