Home / 13,286.63-18,344.37-10,256.29

Finding the Fourth Proportional to 13,286.63, 18,344.37 and 10,256.29

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Solution

The fourth proportional to 13,286.63, 18,344.37 and 10,256.29 is: 14,160.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.63 : 18,344.37 = 10,256.29 : x
  2. Step 2: Convert to fraction form
    13,286.63/18,344.37 = 10,256.29/x
  3. Step 3: Cross multiply
    13,286.63x = 18,344.37 × 10,256.29
  4. Step 4: Simplify right side
    13,286.63x = 188,145,171.19
  5. Step 5: Solve for x
    x = 188,145,171.19/13,286.63
  6. Step 6: Final answer
    x = 14,160.49

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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.