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Finding the Fourth Proportional to 14,285, 19,714.02 and 8,696.36

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Solution

The fourth proportional to 14,285, 19,714.02 and 8,696.36 is: 12,001.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,285 : 19,714.02 = 8,696.36 : x
  2. Step 2: Convert to fraction form
    14,285/19,714.02 = 8,696.36/x
  3. Step 3: Cross multiply
    14,285x = 19,714.02 × 8,696.36
  4. Step 4: Simplify right side
    14,285x = 171,440,214.97
  5. Step 5: Solve for x
    x = 171,440,214.97/14,285
  6. Step 6: Final answer
    x = 12,001.42

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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.