Home / 18,129.56-25,019.22-10,172.37

Finding the Fourth Proportional to 18,129.56, 25,019.22 and 10,172.37

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Solution

The fourth proportional to 18,129.56, 25,019.22 and 10,172.37 is: 14,038.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.56 : 25,019.22 = 10,172.37 : x
  2. Step 2: Convert to fraction form
    18,129.56/25,019.22 = 10,172.37/x
  3. Step 3: Cross multiply
    18,129.56x = 25,019.22 × 10,172.37
  4. Step 4: Simplify right side
    18,129.56x = 254,504,852.58
  5. Step 5: Solve for x
    x = 254,504,852.58/18,129.56
  6. Step 6: Final answer
    x = 14,038.12

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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.