Home / 11,518.93-15,891.42-7,268.55

Finding the Fourth Proportional to 11,518.93, 15,891.42 and 7,268.55

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Solution

The fourth proportional to 11,518.93, 15,891.42 and 7,268.55 is: 10,027.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.93 : 15,891.42 = 7,268.55 : x
  2. Step 2: Convert to fraction form
    11,518.93/15,891.42 = 7,268.55/x
  3. Step 3: Cross multiply
    11,518.93x = 15,891.42 × 7,268.55
  4. Step 4: Simplify right side
    11,518.93x = 115,507,580.84
  5. Step 5: Solve for x
    x = 115,507,580.84/11,518.93
  6. Step 6: Final answer
    x = 10,027.63

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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.