Home / 9,255.11-12,771.92-5,276.30

Finding the Fourth Proportional to 9,255.11, 12,771.92 and 5,276.30

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Solution

The fourth proportional to 9,255.11, 12,771.92 and 5,276.30 is: 7,281.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,255.11 : 12,771.92 = 5,276.30 : x
  2. Step 2: Convert to fraction form
    9,255.11/12,771.92 = 5,276.30/x
  3. Step 3: Cross multiply
    9,255.11x = 12,771.92 × 5,276.30
  4. Step 4: Simplify right side
    9,255.11x = 67,388,430.83
  5. Step 5: Solve for x
    x = 67,388,430.83/9,255.11
  6. Step 6: Final answer
    x = 7,281.22

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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.