Home / 8,102.76-12,154.14-1,946.76

Finding the Fourth Proportional to 8,102.76, 12,154.14 and 1,946.76

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Solution

The fourth proportional to 8,102.76, 12,154.14 and 1,946.76 is: 2,920.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,102.76 : 12,154.14 = 1,946.76 : x
  2. Step 2: Convert to fraction form
    8,102.76/12,154.14 = 1,946.76/x
  3. Step 3: Cross multiply
    8,102.76x = 12,154.14 × 1,946.76
  4. Step 4: Simplify right side
    8,102.76x = 23,661,193.59
  5. Step 5: Solve for x
    x = 23,661,193.59/8,102.76
  6. Step 6: Final answer
    x = 2,920.14

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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.