Home / 18,629.18-25,708.44-10,131.39

Finding the Fourth Proportional to 18,629.18, 25,708.44 and 10,131.39

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Solution

The fourth proportional to 18,629.18, 25,708.44 and 10,131.39 is: 13,981.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,629.18 : 25,708.44 = 10,131.39 : x
  2. Step 2: Convert to fraction form
    18,629.18/25,708.44 = 10,131.39/x
  3. Step 3: Cross multiply
    18,629.18x = 25,708.44 × 10,131.39
  4. Step 4: Simplify right side
    18,629.18x = 260,462,173.52
  5. Step 5: Solve for x
    x = 260,462,173.52/18,629.18
  6. Step 6: Final answer
    x = 13,981.41

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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.