Home / 19,519-26,936.22-11,135.32

Finding the Fourth Proportional to 19,519, 26,936.22 and 11,135.32

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Solution

The fourth proportional to 19,519, 26,936.22 and 11,135.32 is: 15,366.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,519 : 26,936.22 = 11,135.32 : x
  2. Step 2: Convert to fraction form
    19,519/26,936.22 = 11,135.32/x
  3. Step 3: Cross multiply
    19,519x = 26,936.22 × 11,135.32
  4. Step 4: Simplify right side
    19,519x = 299,943,429.29
  5. Step 5: Solve for x
    x = 299,943,429.29/19,519
  6. Step 6: Final answer
    x = 15,366.74

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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.