Home / 13,933.08-19,228.05-7,965

Finding the Fourth Proportional to 13,933.08, 19,228.05 and 7,965

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Solution

The fourth proportional to 13,933.08, 19,228.05 and 7,965 is: 10,991.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.08 : 19,228.05 = 7,965 : x
  2. Step 2: Convert to fraction form
    13,933.08/19,228.05 = 7,965/x
  3. Step 3: Cross multiply
    13,933.08x = 19,228.05 × 7,965
  4. Step 4: Simplify right side
    13,933.08x = 153,151,418.25
  5. Step 5: Solve for x
    x = 153,151,418.25/13,933.08
  6. Step 6: Final answer
    x = 10,991.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.