Home / 19,743.26-27,243.06-12,679.25

Finding the Fourth Proportional to 19,743.26, 27,243.06 and 12,679.25

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Solution

The fourth proportional to 19,743.26, 27,243.06 and 12,679.25 is: 17,495.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,743.26 : 27,243.06 = 12,679.25 : x
  2. Step 2: Convert to fraction form
    19,743.26/27,243.06 = 12,679.25/x
  3. Step 3: Cross multiply
    19,743.26x = 27,243.06 × 12,679.25
  4. Step 4: Simplify right side
    19,743.26x = 345,421,432.29
  5. Step 5: Solve for x
    x = 345,421,432.29/19,743.26
  6. Step 6: Final answer
    x = 17,495.67

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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.