Home / 18,949.26-26,139.48-13,292.43

Finding the Fourth Proportional to 18,949.26, 26,139.48 and 13,292.43

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Solution

The fourth proportional to 18,949.26, 26,139.48 and 13,292.43 is: 18,336.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,949.26 : 26,139.48 = 13,292.43 : x
  2. Step 2: Convert to fraction form
    18,949.26/26,139.48 = 13,292.43/x
  3. Step 3: Cross multiply
    18,949.26x = 26,139.48 × 13,292.43
  4. Step 4: Simplify right side
    18,949.26x = 347,457,208.14
  5. Step 5: Solve for x
    x = 347,457,208.14/18,949.26
  6. Step 6: Final answer
    x = 18,336.19

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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.