Home / 13,934.48-19,147.78-11,135.12

Finding the Fourth Proportional to 13,934.48, 19,147.78 and 11,135.12

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Solution

The fourth proportional to 13,934.48, 19,147.78 and 11,135.12 is: 15,301.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,934.48 : 19,147.78 = 11,135.12 : x
  2. Step 2: Convert to fraction form
    13,934.48/19,147.78 = 11,135.12/x
  3. Step 3: Cross multiply
    13,934.48x = 19,147.78 × 11,135.12
  4. Step 4: Simplify right side
    13,934.48x = 213,212,828.03
  5. Step 5: Solve for x
    x = 213,212,828.03/13,934.48
  6. Step 6: Final answer
    x = 15,301.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.