Home / 12,791.90-19,152.41-6,538.44

Finding the Fourth Proportional to 12,791.90, 19,152.41 and 6,538.44

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Solution

The fourth proportional to 12,791.90, 19,152.41 and 6,538.44 is: 9,789.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791.90 : 19,152.41 = 6,538.44 : x
  2. Step 2: Convert to fraction form
    12,791.90/19,152.41 = 6,538.44/x
  3. Step 3: Cross multiply
    12,791.90x = 19,152.41 × 6,538.44
  4. Step 4: Simplify right side
    12,791.90x = 125,226,899.99
  5. Step 5: Solve for x
    x = 125,226,899.99/12,791.90
  6. Step 6: Final answer
    x = 9,789.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.