Home / 18,989.58-26,212.62-11,436.24

Finding the Fourth Proportional to 18,989.58, 26,212.62 and 11,436.24

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Solution

The fourth proportional to 18,989.58, 26,212.62 and 11,436.24 is: 15,786.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989.58 : 26,212.62 = 11,436.24 : x
  2. Step 2: Convert to fraction form
    18,989.58/26,212.62 = 11,436.24/x
  3. Step 3: Cross multiply
    18,989.58x = 26,212.62 × 11,436.24
  4. Step 4: Simplify right side
    18,989.58x = 299,773,813.35
  5. Step 5: Solve for x
    x = 299,773,813.35/18,989.58
  6. Step 6: Final answer
    x = 15,786.23

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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.