Home / 19,804.88-27,343.16-12,743.57

Finding the Fourth Proportional to 19,804.88, 27,343.16 and 12,743.57

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Solution

The fourth proportional to 19,804.88, 27,343.16 and 12,743.57 is: 17,594.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,804.88 : 27,343.16 = 12,743.57 : x
  2. Step 2: Convert to fraction form
    19,804.88/27,343.16 = 12,743.57/x
  3. Step 3: Cross multiply
    19,804.88x = 27,343.16 × 12,743.57
  4. Step 4: Simplify right side
    19,804.88x = 348,449,273.05
  5. Step 5: Solve for x
    x = 348,449,273.05/19,804.88
  6. Step 6: Final answer
    x = 17,594.12

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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.