Home / 19,012.36-28,519.98-5,161

Finding the Fourth Proportional to 19,012.36, 28,519.98 and 5,161

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Solution

The fourth proportional to 19,012.36, 28,519.98 and 5,161 is: 7,741.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,012.36 : 28,519.98 = 5,161 : x
  2. Step 2: Convert to fraction form
    19,012.36/28,519.98 = 5,161/x
  3. Step 3: Cross multiply
    19,012.36x = 28,519.98 × 5,161
  4. Step 4: Simplify right side
    19,012.36x = 147,191,616.78
  5. Step 5: Solve for x
    x = 147,191,616.78/19,012.36
  6. Step 6: Final answer
    x = 7,741.89

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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.