Home / 19,180.12-28,760.46-8,782.96

Finding the Fourth Proportional to 19,180.12, 28,760.46 and 8,782.96

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Solution

The fourth proportional to 19,180.12, 28,760.46 and 8,782.96 is: 13,169.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,180.12 : 28,760.46 = 8,782.96 : x
  2. Step 2: Convert to fraction form
    19,180.12/28,760.46 = 8,782.96/x
  3. Step 3: Cross multiply
    19,180.12x = 28,760.46 × 8,782.96
  4. Step 4: Simplify right side
    19,180.12x = 252,601,969.76
  5. Step 5: Solve for x
    x = 252,601,969.76/19,180.12
  6. Step 6: Final answer
    x = 13,169.99

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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.