Home / 7,418.90-11,128.26-3,036.35

Finding the Fourth Proportional to 7,418.90, 11,128.26 and 3,036.35

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Solution

The fourth proportional to 7,418.90, 11,128.26 and 3,036.35 is: 4,554.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.90 : 11,128.26 = 3,036.35 : x
  2. Step 2: Convert to fraction form
    7,418.90/11,128.26 = 3,036.35/x
  3. Step 3: Cross multiply
    7,418.90x = 11,128.26 × 3,036.35
  4. Step 4: Simplify right side
    7,418.90x = 33,789,292.25
  5. Step 5: Solve for x
    x = 33,789,292.25/7,418.90
  6. Step 6: Final answer
    x = 4,554.49

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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.