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Finding the Fourth Proportional to 14,000.08, 21,000.12 and 3,611

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Solution

The fourth proportional to 14,000.08, 21,000.12 and 3,611 is: 5,416.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,000.08 : 21,000.12 = 3,611 : x
  2. Step 2: Convert to fraction form
    14,000.08/21,000.12 = 3,611/x
  3. Step 3: Cross multiply
    14,000.08x = 21,000.12 × 3,611
  4. Step 4: Simplify right side
    14,000.08x = 75,831,433.32
  5. Step 5: Solve for x
    x = 75,831,433.32/14,000.08
  6. Step 6: Final answer
    x = 5,416.50

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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.