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Finding the Fourth Proportional to 7,855.56, 11,783.34 and 2,012.22

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Solution

The fourth proportional to 7,855.56, 11,783.34 and 2,012.22 is: 3,018.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.56 : 11,783.34 = 2,012.22 : x
  2. Step 2: Convert to fraction form
    7,855.56/11,783.34 = 2,012.22/x
  3. Step 3: Cross multiply
    7,855.56x = 11,783.34 × 2,012.22
  4. Step 4: Simplify right side
    7,855.56x = 23,710,672.41
  5. Step 5: Solve for x
    x = 23,710,672.41/7,855.56
  6. Step 6: Final answer
    x = 3,018.33

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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.