Home / 13,934.12-20,876.81-11,609.06

Finding the Fourth Proportional to 13,934.12, 20,876.81 and 11,609.06

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Solution

The fourth proportional to 13,934.12, 20,876.81 and 11,609.06 is: 17,393.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,934.12 : 20,876.81 = 11,609.06 : x
  2. Step 2: Convert to fraction form
    13,934.12/20,876.81 = 11,609.06/x
  3. Step 3: Cross multiply
    13,934.12x = 20,876.81 × 11,609.06
  4. Step 4: Simplify right side
    13,934.12x = 242,359,977.47
  5. Step 5: Solve for x
    x = 242,359,977.47/13,934.12
  6. Step 6: Final answer
    x = 17,393.28

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1.5x scale

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.