Home / 18,129.54-25,019.22-10,172.37

Finding the Fourth Proportional to 18,129.54, 25,019.22 and 10,172.37

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Solution

The fourth proportional to 18,129.54, 25,019.22 and 10,172.37 is: 14,038.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.54 : 25,019.22 = 10,172.37 : x
  2. Step 2: Convert to fraction form
    18,129.54/25,019.22 = 10,172.37/x
  3. Step 3: Cross multiply
    18,129.54x = 25,019.22 × 10,172.37
  4. Step 4: Simplify right side
    18,129.54x = 254,504,762.95
  5. Step 5: Solve for x
    x = 254,504,762.95/18,129.54
  6. Step 6: Final answer
    x = 14,038.13

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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.