Home / 9,147.20-13,721.40-2,573.60

Finding the Fourth Proportional to 9,147.20, 13,721.40 and 2,573.60

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Solution

The fourth proportional to 9,147.20, 13,721.40 and 2,573.60 is: 3,860.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.20 : 13,721.40 = 2,573.60 : x
  2. Step 2: Convert to fraction form
    9,147.20/13,721.40 = 2,573.60/x
  3. Step 3: Cross multiply
    9,147.20x = 13,721.40 × 2,573.60
  4. Step 4: Simplify right side
    9,147.20x = 35,313,395.04
  5. Step 5: Solve for x
    x = 35,313,395.04/9,147.20
  6. Step 6: Final answer
    x = 3,860.57

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1.5x scale

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.