Home / 13,732.86-18,951.13-7,764.30

Finding the Fourth Proportional to 13,732.86, 18,951.13 and 7,764.30

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Solution

The fourth proportional to 13,732.86, 18,951.13 and 7,764.30 is: 10,714.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,732.86 : 18,951.13 = 7,764.30 : x
  2. Step 2: Convert to fraction form
    13,732.86/18,951.13 = 7,764.30/x
  3. Step 3: Cross multiply
    13,732.86x = 18,951.13 × 7,764.30
  4. Step 4: Simplify right side
    13,732.86x = 147,142,258.66
  5. Step 5: Solve for x
    x = 147,142,258.66/13,732.86
  6. Step 6: Final answer
    x = 10,714.61

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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.