Home / 13,080.87-19,608.75-8,387.73

Finding the Fourth Proportional to 13,080.87, 19,608.75 and 8,387.73

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Solution

The fourth proportional to 13,080.87, 19,608.75 and 8,387.73 is: 12,573.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.87 : 19,608.75 = 8,387.73 : x
  2. Step 2: Convert to fraction form
    13,080.87/19,608.75 = 8,387.73/x
  3. Step 3: Cross multiply
    13,080.87x = 19,608.75 × 8,387.73
  4. Step 4: Simplify right side
    13,080.87x = 164,472,900.64
  5. Step 5: Solve for x
    x = 164,472,900.64/13,080.87
  6. Step 6: Final answer
    x = 12,573.54

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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.