Home / 9,520.12-13,137.84-5,271.25

Finding the Fourth Proportional to 9,520.12, 13,137.84 and 5,271.25

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Solution

The fourth proportional to 9,520.12, 13,137.84 and 5,271.25 is: 7,274.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,520.12 : 13,137.84 = 5,271.25 : x
  2. Step 2: Convert to fraction form
    9,520.12/13,137.84 = 5,271.25/x
  3. Step 3: Cross multiply
    9,520.12x = 13,137.84 × 5,271.25
  4. Step 4: Simplify right side
    9,520.12x = 69,252,839.10
  5. Step 5: Solve for x
    x = 69,252,839.10/9,520.12
  6. Step 6: Final answer
    x = 7,274.37

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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.