Home / 19,131.44-28,697.12-5,091.47

Finding the Fourth Proportional to 19,131.44, 28,697.12 and 5,091.47

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Solution

The fourth proportional to 19,131.44, 28,697.12 and 5,091.47 is: 7,637.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131.44 : 28,697.12 = 5,091.47 : x
  2. Step 2: Convert to fraction form
    19,131.44/28,697.12 = 5,091.47/x
  3. Step 3: Cross multiply
    19,131.44x = 28,697.12 × 5,091.47
  4. Step 4: Simplify right side
    19,131.44x = 146,110,511.97
  5. Step 5: Solve for x
    x = 146,110,511.97/19,131.44
  6. Step 6: Final answer
    x = 7,637.19

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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.