Home / 7,121.08-10,668.66-6,965.56

Finding the Fourth Proportional to 7,121.08, 10,668.66 and 6,965.56

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Solution

The fourth proportional to 7,121.08, 10,668.66 and 6,965.56 is: 10,435.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.08 : 10,668.66 = 6,965.56 : x
  2. Step 2: Convert to fraction form
    7,121.08/10,668.66 = 6,965.56/x
  3. Step 3: Cross multiply
    7,121.08x = 10,668.66 × 6,965.56
  4. Step 4: Simplify right side
    7,121.08x = 74,313,191.35
  5. Step 5: Solve for x
    x = 74,313,191.35/7,121.08
  6. Step 6: Final answer
    x = 10,435.66

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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.