Home / 19,759.28-27,268.68-11,378.48

Finding the Fourth Proportional to 19,759.28, 27,268.68 and 11,378.48

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Solution

The fourth proportional to 19,759.28, 27,268.68 and 11,378.48 is: 15,702.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,759.28 : 27,268.68 = 11,378.48 : x
  2. Step 2: Convert to fraction form
    19,759.28/27,268.68 = 11,378.48/x
  3. Step 3: Cross multiply
    19,759.28x = 27,268.68 × 11,378.48
  4. Step 4: Simplify right side
    19,759.28x = 310,276,130.01
  5. Step 5: Solve for x
    x = 310,276,130.01/19,759.28
  6. Step 6: Final answer
    x = 15,702.81

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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.