Home / 11,428.02-17,142.03-7,531.51

Finding the Fourth Proportional to 11,428.02, 17,142.03 and 7,531.51

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Solution

The fourth proportional to 11,428.02, 17,142.03 and 7,531.51 is: 11,297.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,428.02 : 17,142.03 = 7,531.51 : x
  2. Step 2: Convert to fraction form
    11,428.02/17,142.03 = 7,531.51/x
  3. Step 3: Cross multiply
    11,428.02x = 17,142.03 × 7,531.51
  4. Step 4: Simplify right side
    11,428.02x = 129,105,370.37
  5. Step 5: Solve for x
    x = 129,105,370.37/11,428.02
  6. Step 6: Final answer
    x = 11,297.27

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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.