Home / 12,135.37-18,203.06-3,370.28

Finding the Fourth Proportional to 12,135.37, 18,203.06 and 3,370.28

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Solution

The fourth proportional to 12,135.37, 18,203.06 and 3,370.28 is: 5,055.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135.37 : 18,203.06 = 3,370.28 : x
  2. Step 2: Convert to fraction form
    12,135.37/18,203.06 = 3,370.28/x
  3. Step 3: Cross multiply
    12,135.37x = 18,203.06 × 3,370.28
  4. Step 4: Simplify right side
    12,135.37x = 61,349,409.06
  5. Step 5: Solve for x
    x = 61,349,409.06/12,135.37
  6. Step 6: Final answer
    x = 5,055.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.