Home / 11,216.26-15,480.75-7,439.64

Finding the Fourth Proportional to 11,216.26, 15,480.75 and 7,439.64

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Solution

The fourth proportional to 11,216.26, 15,480.75 and 7,439.64 is: 10,268.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216.26 : 15,480.75 = 7,439.64 : x
  2. Step 2: Convert to fraction form
    11,216.26/15,480.75 = 7,439.64/x
  3. Step 3: Cross multiply
    11,216.26x = 15,480.75 × 7,439.64
  4. Step 4: Simplify right side
    11,216.26x = 115,171,206.93
  5. Step 5: Solve for x
    x = 115,171,206.93/11,216.26
  6. Step 6: Final answer
    x = 10,268.24

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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.