Home / 8,743.28-12,055.22-7,144.02

Finding the Fourth Proportional to 8,743.28, 12,055.22 and 7,144.02

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Solution

The fourth proportional to 8,743.28, 12,055.22 and 7,144.02 is: 9,850.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,743.28 : 12,055.22 = 7,144.02 : x
  2. Step 2: Convert to fraction form
    8,743.28/12,055.22 = 7,144.02/x
  3. Step 3: Cross multiply
    8,743.28x = 12,055.22 × 7,144.02
  4. Step 4: Simplify right side
    8,743.28x = 86,122,732.78
  5. Step 5: Solve for x
    x = 86,122,732.78/8,743.28
  6. Step 6: Final answer
    x = 9,850.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.