Home / 13,839.09-20,651.51-12,362.37

Finding the Fourth Proportional to 13,839.09, 20,651.51 and 12,362.37

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Solution

The fourth proportional to 13,839.09, 20,651.51 and 12,362.37 is: 18,447.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839.09 : 20,651.51 = 12,362.37 : x
  2. Step 2: Convert to fraction form
    13,839.09/20,651.51 = 12,362.37/x
  3. Step 3: Cross multiply
    13,839.09x = 20,651.51 × 12,362.37
  4. Step 4: Simplify right side
    13,839.09x = 255,301,638.58
  5. Step 5: Solve for x
    x = 255,301,638.58/13,839.09
  6. Step 6: Final answer
    x = 18,447.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.