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Finding the Fourth Proportional to 8,355.84, 12,473.00 and 7,976.76

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Solution

The fourth proportional to 8,355.84, 12,473.00 and 7,976.76 is: 11,907.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.84 : 12,473.00 = 7,976.76 : x
  2. Step 2: Convert to fraction form
    8,355.84/12,473.00 = 7,976.76/x
  3. Step 3: Cross multiply
    8,355.84x = 12,473.00 × 7,976.76
  4. Step 4: Simplify right side
    8,355.84x = 99,494,087.60
  5. Step 5: Solve for x
    x = 99,494,087.60/8,355.84
  6. Step 6: Final answer
    x = 11,907.13

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.