Home / 11,173.20-15,429.44-7,201.24

Finding the Fourth Proportional to 11,173.20, 15,429.44 and 7,201.24

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Solution

The fourth proportional to 11,173.20, 15,429.44 and 7,201.24 is: 9,944.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,173.20 : 15,429.44 = 7,201.24 : x
  2. Step 2: Convert to fraction form
    11,173.20/15,429.44 = 7,201.24/x
  3. Step 3: Cross multiply
    11,173.20x = 15,429.44 × 7,201.24
  4. Step 4: Simplify right side
    11,173.20x = 111,111,100.51
  5. Step 5: Solve for x
    x = 111,111,100.51/11,173.20
  6. Step 6: Final answer
    x = 9,944.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.