Home / 10,645.80-15,976.26-3,720.36

Finding the Fourth Proportional to 10,645.80, 15,976.26 and 3,720.36

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Solution

The fourth proportional to 10,645.80, 15,976.26 and 3,720.36 is: 5,583.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,645.80 : 15,976.26 = 3,720.36 : x
  2. Step 2: Convert to fraction form
    10,645.80/15,976.26 = 3,720.36/x
  3. Step 3: Cross multiply
    10,645.80x = 15,976.26 × 3,720.36
  4. Step 4: Simplify right side
    10,645.80x = 59,437,438.65
  5. Step 5: Solve for x
    x = 59,437,438.65/10,645.80
  6. Step 6: Final answer
    x = 5,583.18

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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.