Home / 10,647.80-15,979.26-3,722.36

Finding the Fourth Proportional to 10,647.80, 15,979.26 and 3,722.36

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Solution

The fourth proportional to 10,647.80, 15,979.26 and 3,722.36 is: 5,586.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,647.80 : 15,979.26 = 3,722.36 : x
  2. Step 2: Convert to fraction form
    10,647.80/15,979.26 = 3,722.36/x
  3. Step 3: Cross multiply
    10,647.80x = 15,979.26 × 3,722.36
  4. Step 4: Simplify right side
    10,647.80x = 59,480,558.25
  5. Step 5: Solve for x
    x = 59,480,558.25/10,647.80
  6. Step 6: Final answer
    x = 5,586.18

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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.