Home / 19,868.10-27,415.26-11,369.31

Finding the Fourth Proportional to 19,868.10, 27,415.26 and 11,369.31

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Solution

The fourth proportional to 19,868.10, 27,415.26 and 11,369.31 is: 15,688.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,868.10 : 27,415.26 = 11,369.31 : x
  2. Step 2: Convert to fraction form
    19,868.10/27,415.26 = 11,369.31/x
  3. Step 3: Cross multiply
    19,868.10x = 27,415.26 × 11,369.31
  4. Step 4: Simplify right side
    19,868.10x = 311,692,589.67
  5. Step 5: Solve for x
    x = 311,692,589.67/19,868.10
  6. Step 6: Final answer
    x = 15,688.09

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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.