Home / 19,751.25-27,256.74-11,367.75

Finding the Fourth Proportional to 19,751.25, 27,256.74 and 11,367.75

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Solution

The fourth proportional to 19,751.25, 27,256.74 and 11,367.75 is: 15,687.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,751.25 : 27,256.74 = 11,367.75 : x
  2. Step 2: Convert to fraction form
    19,751.25/27,256.74 = 11,367.75/x
  3. Step 3: Cross multiply
    19,751.25x = 27,256.74 × 11,367.75
  4. Step 4: Simplify right side
    19,751.25x = 309,847,806.14
  5. Step 5: Solve for x
    x = 309,847,806.14/19,751.25
  6. Step 6: Final answer
    x = 15,687.50

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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.