Home / 7,111.44-10,685.76-6,668.64

Finding the Fourth Proportional to 7,111.44, 10,685.76 and 6,668.64

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Solution

The fourth proportional to 7,111.44, 10,685.76 and 6,668.64 is: 10,020.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111.44 : 10,685.76 = 6,668.64 : x
  2. Step 2: Convert to fraction form
    7,111.44/10,685.76 = 6,668.64/x
  3. Step 3: Cross multiply
    7,111.44x = 10,685.76 × 6,668.64
  4. Step 4: Simplify right side
    7,111.44x = 71,259,486.57
  5. Step 5: Solve for x
    x = 71,259,486.57/7,111.44
  6. Step 6: Final answer
    x = 10,020.40

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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.