Home / 11,775.48-17,661.09-4,755.20

Finding the Fourth Proportional to 11,775.48, 17,661.09 and 4,755.20

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Solution

The fourth proportional to 11,775.48, 17,661.09 and 4,755.20 is: 7,131.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,775.48 : 17,661.09 = 4,755.20 : x
  2. Step 2: Convert to fraction form
    11,775.48/17,661.09 = 4,755.20/x
  3. Step 3: Cross multiply
    11,775.48x = 17,661.09 × 4,755.20
  4. Step 4: Simplify right side
    11,775.48x = 83,982,015.17
  5. Step 5: Solve for x
    x = 83,982,015.17/11,775.48
  6. Step 6: Final answer
    x = 7,131.94

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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.