Home / 16,665.78-23,001.12-10,714.44

Finding the Fourth Proportional to 16,665.78, 23,001.12 and 10,714.44

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Solution

The fourth proportional to 16,665.78, 23,001.12 and 10,714.44 is: 14,787.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,665.78 : 23,001.12 = 10,714.44 : x
  2. Step 2: Convert to fraction form
    16,665.78/23,001.12 = 10,714.44/x
  3. Step 3: Cross multiply
    16,665.78x = 23,001.12 × 10,714.44
  4. Step 4: Simplify right side
    16,665.78x = 246,444,120.17
  5. Step 5: Solve for x
    x = 246,444,120.17/16,665.78
  6. Step 6: Final answer
    x = 14,787.43

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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.