Home / 14,479.28-19,981.74-8,192

Finding the Fourth Proportional to 14,479.28, 19,981.74 and 8,192

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Solution

The fourth proportional to 14,479.28, 19,981.74 and 8,192 is: 11,305.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,479.28 : 19,981.74 = 8,192 : x
  2. Step 2: Convert to fraction form
    14,479.28/19,981.74 = 8,192/x
  3. Step 3: Cross multiply
    14,479.28x = 19,981.74 × 8,192
  4. Step 4: Simplify right side
    14,479.28x = 163,690,414.08
  5. Step 5: Solve for x
    x = 163,690,414.08/14,479.28
  6. Step 6: Final answer
    x = 11,305.15

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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.