Home / 10,559.15-15,844.19-7,661.37

Finding the Fourth Proportional to 10,559.15, 15,844.19 and 7,661.37

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Solution

The fourth proportional to 10,559.15, 15,844.19 and 7,661.37 is: 11,496.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,559.15 : 15,844.19 = 7,661.37 : x
  2. Step 2: Convert to fraction form
    10,559.15/15,844.19 = 7,661.37/x
  3. Step 3: Cross multiply
    10,559.15x = 15,844.19 × 7,661.37
  4. Step 4: Simplify right side
    10,559.15x = 121,388,201.94
  5. Step 5: Solve for x
    x = 121,388,201.94/10,559.15
  6. Step 6: Final answer
    x = 11,496.02

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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.