Home / 9,249.12-12,764.76-5,271

Finding the Fourth Proportional to 9,249.12, 12,764.76 and 5,271

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Solution

The fourth proportional to 9,249.12, 12,764.76 and 5,271 is: 7,274.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,249.12 : 12,764.76 = 5,271 : x
  2. Step 2: Convert to fraction form
    9,249.12/12,764.76 = 5,271/x
  3. Step 3: Cross multiply
    9,249.12x = 12,764.76 × 5,271
  4. Step 4: Simplify right side
    9,249.12x = 67,283,049.96
  5. Step 5: Solve for x
    x = 67,283,049.96/9,249.12
  6. Step 6: Final answer
    x = 7,274.54

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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.