Home / 18,837.44-28,241.76-11,430.08

Finding the Fourth Proportional to 18,837.44, 28,241.76 and 11,430.08

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Solution

The fourth proportional to 18,837.44, 28,241.76 and 11,430.08 is: 17,136.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837.44 : 28,241.76 = 11,430.08 : x
  2. Step 2: Convert to fraction form
    18,837.44/28,241.76 = 11,430.08/x
  3. Step 3: Cross multiply
    18,837.44x = 28,241.76 × 11,430.08
  4. Step 4: Simplify right side
    18,837.44x = 322,805,576.14
  5. Step 5: Solve for x
    x = 322,805,576.14/18,837.44
  6. Step 6: Final answer
    x = 17,136.38

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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.