Home / 14,188.06-19,578.27-8,217.82

Finding the Fourth Proportional to 14,188.06, 19,578.27 and 8,217.82

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Solution

The fourth proportional to 14,188.06, 19,578.27 and 8,217.82 is: 11,339.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,188.06 : 19,578.27 = 8,217.82 : x
  2. Step 2: Convert to fraction form
    14,188.06/19,578.27 = 8,217.82/x
  3. Step 3: Cross multiply
    14,188.06x = 19,578.27 × 8,217.82
  4. Step 4: Simplify right side
    14,188.06x = 160,890,698.77
  5. Step 5: Solve for x
    x = 160,890,698.77/14,188.06
  6. Step 6: Final answer
    x = 11,339.87

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1.5x scale

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.