Home / 14,872.28-20,521.72-8,902.56

Finding the Fourth Proportional to 14,872.28, 20,521.72 and 8,902.56

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Solution

The fourth proportional to 14,872.28, 20,521.72 and 8,902.56 is: 12,284.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,872.28 : 20,521.72 = 8,902.56 : x
  2. Step 2: Convert to fraction form
    14,872.28/20,521.72 = 8,902.56/x
  3. Step 3: Cross multiply
    14,872.28x = 20,521.72 × 8,902.56
  4. Step 4: Simplify right side
    14,872.28x = 182,695,843.60
  5. Step 5: Solve for x
    x = 182,695,843.60/14,872.28
  6. Step 6: Final answer
    x = 12,284.32

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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.