Home / 9,338.26-12,887.60-5,147.32

Finding the Fourth Proportional to 9,338.26, 12,887.60 and 5,147.32

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Solution

The fourth proportional to 9,338.26, 12,887.60 and 5,147.32 is: 7,103.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,338.26 : 12,887.60 = 5,147.32 : x
  2. Step 2: Convert to fraction form
    9,338.26/12,887.60 = 5,147.32/x
  3. Step 3: Cross multiply
    9,338.26x = 12,887.60 × 5,147.32
  4. Step 4: Simplify right side
    9,338.26x = 66,336,601.23
  5. Step 5: Solve for x
    x = 66,336,601.23/9,338.26
  6. Step 6: Final answer
    x = 7,103.74

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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.