Home / 7,391.36-11,074.40-4,788.80

Finding the Fourth Proportional to 7,391.36, 11,074.40 and 4,788.80

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Solution

The fourth proportional to 7,391.36, 11,074.40 and 4,788.80 is: 7,175.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,391.36 : 11,074.40 = 4,788.80 : x
  2. Step 2: Convert to fraction form
    7,391.36/11,074.40 = 4,788.80/x
  3. Step 3: Cross multiply
    7,391.36x = 11,074.40 × 4,788.80
  4. Step 4: Simplify right side
    7,391.36x = 53,033,086.72
  5. Step 5: Solve for x
    x = 53,033,086.72/7,391.36
  6. Step 6: Final answer
    x = 7,175.01

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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.