Home / 13,938.29-19,208.27-13,682.10

Finding the Fourth Proportional to 13,938.29, 19,208.27 and 13,682.10

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Solution

The fourth proportional to 13,938.29, 19,208.27 and 13,682.10 is: 18,855.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.29 : 19,208.27 = 13,682.10 : x
  2. Step 2: Convert to fraction form
    13,938.29/19,208.27 = 13,682.10/x
  3. Step 3: Cross multiply
    13,938.29x = 19,208.27 × 13,682.10
  4. Step 4: Simplify right side
    13,938.29x = 262,809,469.16
  5. Step 5: Solve for x
    x = 262,809,469.16/13,938.29
  6. Step 6: Final answer
    x = 18,855.21

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1.5x scale

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.