Home / 12,357.12-17,052.84-6,768

Finding the Fourth Proportional to 12,357.12, 17,052.84 and 6,768

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Solution

The fourth proportional to 12,357.12, 17,052.84 and 6,768 is: 9,339.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357.12 : 17,052.84 = 6,768 : x
  2. Step 2: Convert to fraction form
    12,357.12/17,052.84 = 6,768/x
  3. Step 3: Cross multiply
    12,357.12x = 17,052.84 × 6,768
  4. Step 4: Simplify right side
    12,357.12x = 115,413,621.12
  5. Step 5: Solve for x
    x = 115,413,621.12/12,357.12
  6. Step 6: Final answer
    x = 9,339.85

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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.