Home / 13,714.78-20,555.30-10,930.00

Finding the Fourth Proportional to 13,714.78, 20,555.30 and 10,930.00

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Solution

The fourth proportional to 13,714.78, 20,555.30 and 10,930.00 is: 16,381.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,714.78 : 20,555.30 = 10,930.00 : x
  2. Step 2: Convert to fraction form
    13,714.78/20,555.30 = 10,930.00/x
  3. Step 3: Cross multiply
    13,714.78x = 20,555.30 × 10,930.00
  4. Step 4: Simplify right side
    13,714.78x = 224,669,404.94
  5. Step 5: Solve for x
    x = 224,669,404.94/13,714.78
  6. Step 6: Final answer
    x = 16,381.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.