Home / 11,040.80-16,556.80-3,643.20

Finding the Fourth Proportional to 11,040.80, 16,556.80 and 3,643.20

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Solution

The fourth proportional to 11,040.80, 16,556.80 and 3,643.20 is: 5,463.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,040.80 : 16,556.80 = 3,643.20 : x
  2. Step 2: Convert to fraction form
    11,040.80/16,556.80 = 3,643.20/x
  3. Step 3: Cross multiply
    11,040.80x = 16,556.80 × 3,643.20
  4. Step 4: Simplify right side
    11,040.80x = 60,319,733.76
  5. Step 5: Solve for x
    x = 60,319,733.76/11,040.80
  6. Step 6: Final answer
    x = 5,463.35

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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.