Home / 7,782.36-11,668.82-3,103.08

Finding the Fourth Proportional to 7,782.36, 11,668.82 and 3,103.08

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Solution

The fourth proportional to 7,782.36, 11,668.82 and 3,103.08 is: 4,652.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,782.36 : 11,668.82 = 3,103.08 : x
  2. Step 2: Convert to fraction form
    7,782.36/11,668.82 = 3,103.08/x
  3. Step 3: Cross multiply
    7,782.36x = 11,668.82 × 3,103.08
  4. Step 4: Simplify right side
    7,782.36x = 36,209,281.97
  5. Step 5: Solve for x
    x = 36,209,281.97/7,782.36
  6. Step 6: Final answer
    x = 4,652.74

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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.