Home / 19,653.44-27,120.38-11,155.75

Finding the Fourth Proportional to 19,653.44, 27,120.38 and 11,155.75

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Solution

The fourth proportional to 19,653.44, 27,120.38 and 11,155.75 is: 15,394.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,653.44 : 27,120.38 = 11,155.75 : x
  2. Step 2: Convert to fraction form
    19,653.44/27,120.38 = 11,155.75/x
  3. Step 3: Cross multiply
    19,653.44x = 27,120.38 × 11,155.75
  4. Step 4: Simplify right side
    19,653.44x = 302,548,055.61
  5. Step 5: Solve for x
    x = 302,548,055.61/19,653.44
  6. Step 6: Final answer
    x = 15,394.16

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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.