Home / 18,884.43-26,015.49-13,208.55

Finding the Fourth Proportional to 18,884.43, 26,015.49 and 13,208.55

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Solution

The fourth proportional to 18,884.43, 26,015.49 and 13,208.55 is: 18,196.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,884.43 : 26,015.49 = 13,208.55 : x
  2. Step 2: Convert to fraction form
    18,884.43/26,015.49 = 13,208.55/x
  3. Step 3: Cross multiply
    18,884.43x = 26,015.49 × 13,208.55
  4. Step 4: Simplify right side
    18,884.43x = 343,626,900.44
  5. Step 5: Solve for x
    x = 343,626,900.44/18,884.43
  6. Step 6: Final answer
    x = 18,196.31

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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.