Home / 9,352.55-12,905.37-5,160.80

Finding the Fourth Proportional to 9,352.55, 12,905.37 and 5,160.80

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Solution

The fourth proportional to 9,352.55, 12,905.37 and 5,160.80 is: 7,121.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,352.55 : 12,905.37 = 5,160.80 : x
  2. Step 2: Convert to fraction form
    9,352.55/12,905.37 = 5,160.80/x
  3. Step 3: Cross multiply
    9,352.55x = 12,905.37 × 5,160.80
  4. Step 4: Simplify right side
    9,352.55x = 66,601,968.97
  5. Step 5: Solve for x
    x = 66,601,968.97/9,352.55
  6. Step 6: Final answer
    x = 7,121.27

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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.