Home / 11,720.87-17,557.74-5,472.26

Finding the Fourth Proportional to 11,720.87, 17,557.74 and 5,472.26

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Solution

The fourth proportional to 11,720.87, 17,557.74 and 5,472.26 is: 8,197.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.87 : 17,557.74 = 5,472.26 : x
  2. Step 2: Convert to fraction form
    11,720.87/17,557.74 = 5,472.26/x
  3. Step 3: Cross multiply
    11,720.87x = 17,557.74 × 5,472.26
  4. Step 4: Simplify right side
    11,720.87x = 96,080,430.50
  5. Step 5: Solve for x
    x = 96,080,430.50/11,720.87
  6. Step 6: Final answer
    x = 8,197.38

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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.