Home / 12,179.36-18,266.97-3,412.25

Finding the Fourth Proportional to 12,179.36, 18,266.97 and 3,412.25

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Solution

The fourth proportional to 12,179.36, 18,266.97 and 3,412.25 is: 5,117.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,179.36 : 18,266.97 = 3,412.25 : x
  2. Step 2: Convert to fraction form
    12,179.36/18,266.97 = 3,412.25/x
  3. Step 3: Cross multiply
    12,179.36x = 18,266.97 × 3,412.25
  4. Step 4: Simplify right side
    12,179.36x = 62,331,522.58
  5. Step 5: Solve for x
    x = 62,331,522.58/12,179.36
  6. Step 6: Final answer
    x = 5,117.80

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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.