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Finding the Fourth Proportional to 14,391.84, 21,611.21 and 8,880.22

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Solution

The fourth proportional to 14,391.84, 21,611.21 and 8,880.22 is: 13,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391.84 : 21,611.21 = 8,880.22 : x
  2. Step 2: Convert to fraction form
    14,391.84/21,611.21 = 8,880.22/x
  3. Step 3: Cross multiply
    14,391.84x = 21,611.21 × 8,880.22
  4. Step 4: Simplify right side
    14,391.84x = 191,912,299.27
  5. Step 5: Solve for x
    x = 191,912,299.27/14,391.84
  6. Step 6: Final answer
    x = 13,334.80

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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.