Home / 19,176.12-28,754.46-8,778.96

Finding the Fourth Proportional to 19,176.12, 28,754.46 and 8,778.96

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Solution

The fourth proportional to 19,176.12, 28,754.46 and 8,778.96 is: 13,163.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,176.12 : 28,754.46 = 8,778.96 : x
  2. Step 2: Convert to fraction form
    19,176.12/28,754.46 = 8,778.96/x
  3. Step 3: Cross multiply
    19,176.12x = 28,754.46 × 8,778.96
  4. Step 4: Simplify right side
    19,176.12x = 252,434,254.16
  5. Step 5: Solve for x
    x = 252,434,254.16/19,176.12
  6. Step 6: Final answer
    x = 13,163.99

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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.