Home / 7,776.94-11,668.86-4,078.30

Finding the Fourth Proportional to 7,776.94, 11,668.86 and 4,078.30

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Solution

The fourth proportional to 7,776.94, 11,668.86 and 4,078.30 is: 6,119.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776.94 : 11,668.86 = 4,078.30 : x
  2. Step 2: Convert to fraction form
    7,776.94/11,668.86 = 4,078.30/x
  3. Step 3: Cross multiply
    7,776.94x = 11,668.86 × 4,078.30
  4. Step 4: Simplify right side
    7,776.94x = 47,589,111.74
  5. Step 5: Solve for x
    x = 47,589,111.74/7,776.94
  6. Step 6: Final answer
    x = 6,119.26

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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.