Home / 10,561.72-15,845.10-3,636.28

Finding the Fourth Proportional to 10,561.72, 15,845.10 and 3,636.28

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Solution

The fourth proportional to 10,561.72, 15,845.10 and 3,636.28 is: 5,455.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,561.72 : 15,845.10 = 3,636.28 : x
  2. Step 2: Convert to fraction form
    10,561.72/15,845.10 = 3,636.28/x
  3. Step 3: Cross multiply
    10,561.72x = 15,845.10 × 3,636.28
  4. Step 4: Simplify right side
    10,561.72x = 57,617,220.23
  5. Step 5: Solve for x
    x = 57,617,220.23/10,561.72
  6. Step 6: Final answer
    x = 5,455.29

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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.