Home / 14,120.20-19,485.30-8,153.56

Finding the Fourth Proportional to 14,120.20, 19,485.30 and 8,153.56

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Solution

The fourth proportional to 14,120.20, 19,485.30 and 8,153.56 is: 11,251.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.20 : 19,485.30 = 8,153.56 : x
  2. Step 2: Convert to fraction form
    14,120.20/19,485.30 = 8,153.56/x
  3. Step 3: Cross multiply
    14,120.20x = 19,485.30 × 8,153.56
  4. Step 4: Simplify right side
    14,120.20x = 158,874,562.67
  5. Step 5: Solve for x
    x = 158,874,562.67/14,120.20
  6. Step 6: Final answer
    x = 11,251.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.