Home / 9,147.24-13,714.20-2,905.20

Finding the Fourth Proportional to 9,147.24, 13,714.20 and 2,905.20

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Solution

The fourth proportional to 9,147.24, 13,714.20 and 2,905.20 is: 4,355.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.24 : 13,714.20 = 2,905.20 : x
  2. Step 2: Convert to fraction form
    9,147.24/13,714.20 = 2,905.20/x
  3. Step 3: Cross multiply
    9,147.24x = 13,714.20 × 2,905.20
  4. Step 4: Simplify right side
    9,147.24x = 39,842,493.84
  5. Step 5: Solve for x
    x = 39,842,493.84/9,147.24
  6. Step 6: Final answer
    x = 4,355.68

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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.