Home / 19,290.06-26,620.79-10,791.90

Finding the Fourth Proportional to 19,290.06, 26,620.79 and 10,791.90

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Solution

The fourth proportional to 19,290.06, 26,620.79 and 10,791.90 is: 14,893.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.06 : 26,620.79 = 10,791.90 : x
  2. Step 2: Convert to fraction form
    19,290.06/26,620.79 = 10,791.90/x
  3. Step 3: Cross multiply
    19,290.06x = 26,620.79 × 10,791.90
  4. Step 4: Simplify right side
    19,290.06x = 287,288,849.64
  5. Step 5: Solve for x
    x = 287,288,849.64/19,290.06
  6. Step 6: Final answer
    x = 14,893.10

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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.