Home / 18,843.21-28,269.50-13,307.36

Finding the Fourth Proportional to 18,843.21, 28,269.50 and 13,307.36

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Solution

The fourth proportional to 18,843.21, 28,269.50 and 13,307.36 is: 19,964.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,843.21 : 28,269.50 = 13,307.36 : x
  2. Step 2: Convert to fraction form
    18,843.21/28,269.50 = 13,307.36/x
  3. Step 3: Cross multiply
    18,843.21x = 28,269.50 × 13,307.36
  4. Step 4: Simplify right side
    18,843.21x = 376,192,205.64
  5. Step 5: Solve for x
    x = 376,192,205.64/18,843.21
  6. Step 6: Final answer
    x = 19,964.34

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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.