Home / 12,130.64-18,195.97-3,365.56

Finding the Fourth Proportional to 12,130.64, 18,195.97 and 3,365.56

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Solution

The fourth proportional to 12,130.64, 18,195.97 and 3,365.56 is: 5,048.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130.64 : 18,195.97 = 3,365.56 : x
  2. Step 2: Convert to fraction form
    12,130.64/18,195.97 = 3,365.56/x
  3. Step 3: Cross multiply
    12,130.64x = 18,195.97 × 3,365.56
  4. Step 4: Simplify right side
    12,130.64x = 61,239,628.79
  5. Step 5: Solve for x
    x = 61,239,628.79/12,130.64
  6. Step 6: Final answer
    x = 5,048.34

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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.