Home / 13,240.32-18,293.76-11,028.48

Finding the Fourth Proportional to 13,240.32, 18,293.76 and 11,028.48

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Solution

The fourth proportional to 13,240.32, 18,293.76 and 11,028.48 is: 15,237.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.32 : 18,293.76 = 11,028.48 : x
  2. Step 2: Convert to fraction form
    13,240.32/18,293.76 = 11,028.48/x
  3. Step 3: Cross multiply
    13,240.32x = 18,293.76 × 11,028.48
  4. Step 4: Simplify right side
    13,240.32x = 201,752,366.28
  5. Step 5: Solve for x
    x = 201,752,366.28/13,240.32
  6. Step 6: Final answer
    x = 15,237.73

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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.