Home / 12,382.35-17,087.58-6,717.09

Finding the Fourth Proportional to 12,382.35, 17,087.58 and 6,717.09

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Solution

The fourth proportional to 12,382.35, 17,087.58 and 6,717.09 is: 9,269.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382.35 : 17,087.58 = 6,717.09 : x
  2. Step 2: Convert to fraction form
    12,382.35/17,087.58 = 6,717.09/x
  3. Step 3: Cross multiply
    12,382.35x = 17,087.58 × 6,717.09
  4. Step 4: Simplify right side
    12,382.35x = 114,778,812.74
  5. Step 5: Solve for x
    x = 114,778,812.74/12,382.35
  6. Step 6: Final answer
    x = 9,269.55

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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.