Home / 19,356.15-26,713.97-11,399.12

Finding the Fourth Proportional to 19,356.15, 26,713.97 and 11,399.12

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Solution

The fourth proportional to 19,356.15, 26,713.97 and 11,399.12 is: 15,732.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,356.15 : 26,713.97 = 11,399.12 : x
  2. Step 2: Convert to fraction form
    19,356.15/26,713.97 = 11,399.12/x
  3. Step 3: Cross multiply
    19,356.15x = 26,713.97 × 11,399.12
  4. Step 4: Simplify right side
    19,356.15x = 304,515,559.14
  5. Step 5: Solve for x
    x = 304,515,559.14/19,356.15
  6. Step 6: Final answer
    x = 15,732.24

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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.