Home / 13,137.12-19,714.32-6,207.84

Finding the Fourth Proportional to 13,137.12, 19,714.32 and 6,207.84

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Solution

The fourth proportional to 13,137.12, 19,714.32 and 6,207.84 is: 9,315.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,137.12 : 19,714.32 = 6,207.84 : x
  2. Step 2: Convert to fraction form
    13,137.12/19,714.32 = 6,207.84/x
  3. Step 3: Cross multiply
    13,137.12x = 19,714.32 × 6,207.84
  4. Step 4: Simplify right side
    13,137.12x = 122,383,344.27
  5. Step 5: Solve for x
    x = 122,383,344.27/13,137.12
  6. Step 6: Final answer
    x = 9,315.84

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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.