Home / 13,558.13-20,329.09-5,651.11

Finding the Fourth Proportional to 13,558.13, 20,329.09 and 5,651.11

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Solution

The fourth proportional to 13,558.13, 20,329.09 and 5,651.11 is: 8,473.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.13 : 20,329.09 = 5,651.11 : x
  2. Step 2: Convert to fraction form
    13,558.13/20,329.09 = 5,651.11/x
  3. Step 3: Cross multiply
    13,558.13x = 20,329.09 × 5,651.11
  4. Step 4: Simplify right side
    13,558.13x = 114,881,858.84
  5. Step 5: Solve for x
    x = 114,881,858.84/13,558.13
  6. Step 6: Final answer
    x = 8,473.29

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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.