Home / 15,218.26-21,028.03-11,711.77

Finding the Fourth Proportional to 15,218.26, 21,028.03 and 11,711.77

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Solution

The fourth proportional to 15,218.26, 21,028.03 and 11,711.77 is: 16,182.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,218.26 : 21,028.03 = 11,711.77 : x
  2. Step 2: Convert to fraction form
    15,218.26/21,028.03 = 11,711.77/x
  3. Step 3: Cross multiply
    15,218.26x = 21,028.03 × 11,711.77
  4. Step 4: Simplify right side
    15,218.26x = 246,275,520.29
  5. Step 5: Solve for x
    x = 246,275,520.29/15,218.26
  6. Step 6: Final answer
    x = 16,182.89

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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.