Home / 12,394.05-17,103.29-6,728.58

Finding the Fourth Proportional to 12,394.05, 17,103.29 and 6,728.58

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Solution

The fourth proportional to 12,394.05, 17,103.29 and 6,728.58 is: 9,285.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,394.05 : 17,103.29 = 6,728.58 : x
  2. Step 2: Convert to fraction form
    12,394.05/17,103.29 = 6,728.58/x
  3. Step 3: Cross multiply
    12,394.05x = 17,103.29 × 6,728.58
  4. Step 4: Simplify right side
    12,394.05x = 115,080,821.39
  5. Step 5: Solve for x
    x = 115,080,821.39/12,394.05
  6. Step 6: Final answer
    x = 9,285.17

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1.5x scale

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.