Home / 9,071.44-12,515.01-5,240.55

Finding the Fourth Proportional to 9,071.44, 12,515.01 and 5,240.55

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Solution

The fourth proportional to 9,071.44, 12,515.01 and 5,240.55 is: 7,229.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,071.44 : 12,515.01 = 5,240.55 : x
  2. Step 2: Convert to fraction form
    9,071.44/12,515.01 = 5,240.55/x
  3. Step 3: Cross multiply
    9,071.44x = 12,515.01 × 5,240.55
  4. Step 4: Simplify right side
    9,071.44x = 65,585,535.66
  5. Step 5: Solve for x
    x = 65,585,535.66/9,071.44
  6. Step 6: Final answer
    x = 7,229.89

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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.