Home / 12,357.54-17,081.44-11,376.65

Finding the Fourth Proportional to 12,357.54, 17,081.44 and 11,376.65

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Solution

The fourth proportional to 12,357.54, 17,081.44 and 11,376.65 is: 15,725.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357.54 : 17,081.44 = 11,376.65 : x
  2. Step 2: Convert to fraction form
    12,357.54/17,081.44 = 11,376.65/x
  3. Step 3: Cross multiply
    12,357.54x = 17,081.44 × 11,376.65
  4. Step 4: Simplify right side
    12,357.54x = 194,329,578.64
  5. Step 5: Solve for x
    x = 194,329,578.64/12,357.54
  6. Step 6: Final answer
    x = 15,725.59

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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.