Home / 12,746.84-19,120.26-3,982.45

Finding the Fourth Proportional to 12,746.84, 19,120.26 and 3,982.45

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Solution

The fourth proportional to 12,746.84, 19,120.26 and 3,982.45 is: 5,973.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,746.84 : 19,120.26 = 3,982.45 : x
  2. Step 2: Convert to fraction form
    12,746.84/19,120.26 = 3,982.45/x
  3. Step 3: Cross multiply
    12,746.84x = 19,120.26 × 3,982.45
  4. Step 4: Simplify right side
    12,746.84x = 76,145,383.84
  5. Step 5: Solve for x
    x = 76,145,383.84/12,746.84
  6. Step 6: Final answer
    x = 5,973.67

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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.