Home / 14,611.70-21,912.15-4,751.30

Finding the Fourth Proportional to 14,611.70, 21,912.15 and 4,751.30

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Solution

The fourth proportional to 14,611.70, 21,912.15 and 4,751.30 is: 7,125.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,611.70 : 21,912.15 = 4,751.30 : x
  2. Step 2: Convert to fraction form
    14,611.70/21,912.15 = 4,751.30/x
  3. Step 3: Cross multiply
    14,611.70x = 21,912.15 × 4,751.30
  4. Step 4: Simplify right side
    14,611.70x = 104,111,198.30
  5. Step 5: Solve for x
    x = 104,111,198.30/14,611.70
  6. Step 6: Final answer
    x = 7,125.19

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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.