Home / 7,515.63-11,272.52-3,132.53

Finding the Fourth Proportional to 7,515.63, 11,272.52 and 3,132.53

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Solution

The fourth proportional to 7,515.63, 11,272.52 and 3,132.53 is: 4,698.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.63 : 11,272.52 = 3,132.53 : x
  2. Step 2: Convert to fraction form
    7,515.63/11,272.52 = 3,132.53/x
  3. Step 3: Cross multiply
    7,515.63x = 11,272.52 × 3,132.53
  4. Step 4: Simplify right side
    7,515.63x = 35,311,435.05
  5. Step 5: Solve for x
    x = 35,311,435.05/7,515.63
  6. Step 6: Final answer
    x = 4,698.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.