Home / 15,639.44-21,580.38-8,924.66

Finding the Fourth Proportional to 15,639.44, 21,580.38 and 8,924.66

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Solution

The fourth proportional to 15,639.44, 21,580.38 and 8,924.66 is: 12,314.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,639.44 : 21,580.38 = 8,924.66 : x
  2. Step 2: Convert to fraction form
    15,639.44/21,580.38 = 8,924.66/x
  3. Step 3: Cross multiply
    15,639.44x = 21,580.38 × 8,924.66
  4. Step 4: Simplify right side
    15,639.44x = 192,597,554.17
  5. Step 5: Solve for x
    x = 192,597,554.17/15,639.44
  6. Step 6: Final answer
    x = 12,314.86

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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.