Home / 12,741.84-19,112.76-3,977.44

Finding the Fourth Proportional to 12,741.84, 19,112.76 and 3,977.44

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Solution

The fourth proportional to 12,741.84, 19,112.76 and 3,977.44 is: 5,966.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,741.84 : 19,112.76 = 3,977.44 : x
  2. Step 2: Convert to fraction form
    12,741.84/19,112.76 = 3,977.44/x
  3. Step 3: Cross multiply
    12,741.84x = 19,112.76 × 3,977.44
  4. Step 4: Simplify right side
    12,741.84x = 76,019,808.35
  5. Step 5: Solve for x
    x = 76,019,808.35/12,741.84
  6. Step 6: Final answer
    x = 5,966.16

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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.