Home / 10,647.38-15,967.80-3,720.26

Finding the Fourth Proportional to 10,647.38, 15,967.80 and 3,720.26

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Solution

The fourth proportional to 10,647.38, 15,967.80 and 3,720.26 is: 5,579.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,647.38 : 15,967.80 = 3,720.26 : x
  2. Step 2: Convert to fraction form
    10,647.38/15,967.80 = 3,720.26/x
  3. Step 3: Cross multiply
    10,647.38x = 15,967.80 × 3,720.26
  4. Step 4: Simplify right side
    10,647.38x = 59,404,367.63
  5. Step 5: Solve for x
    x = 59,404,367.63/10,647.38
  6. Step 6: Final answer
    x = 5,579.25

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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.