Home / 12,021.39-18,030.69-3,256.97

Finding the Fourth Proportional to 12,021.39, 18,030.69 and 3,256.97

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Solution

The fourth proportional to 12,021.39, 18,030.69 and 3,256.97 is: 4,885.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,021.39 : 18,030.69 = 3,256.97 : x
  2. Step 2: Convert to fraction form
    12,021.39/18,030.69 = 3,256.97/x
  3. Step 3: Cross multiply
    12,021.39x = 18,030.69 × 3,256.97
  4. Step 4: Simplify right side
    12,021.39x = 58,725,326.26
  5. Step 5: Solve for x
    x = 58,725,326.26/12,021.39
  6. Step 6: Final answer
    x = 4,885.07

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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.