Home / 11,074.12-15,286.73-7,539.48

Finding the Fourth Proportional to 11,074.12, 15,286.73 and 7,539.48

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Solution

The fourth proportional to 11,074.12, 15,286.73 and 7,539.48 is: 10,407.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,074.12 : 15,286.73 = 7,539.48 : x
  2. Step 2: Convert to fraction form
    11,074.12/15,286.73 = 7,539.48/x
  3. Step 3: Cross multiply
    11,074.12x = 15,286.73 × 7,539.48
  4. Step 4: Simplify right side
    11,074.12x = 115,253,957.40
  5. Step 5: Solve for x
    x = 115,253,957.40/11,074.12
  6. Step 6: Final answer
    x = 10,407.51

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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.