Home / 15,519.24-21,415.80-8,804.73

Finding the Fourth Proportional to 15,519.24, 21,415.80 and 8,804.73

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Solution

The fourth proportional to 15,519.24, 21,415.80 and 8,804.73 is: 12,150.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,519.24 : 21,415.80 = 8,804.73 : x
  2. Step 2: Convert to fraction form
    15,519.24/21,415.80 = 8,804.73/x
  3. Step 3: Cross multiply
    15,519.24x = 21,415.80 × 8,804.73
  4. Step 4: Simplify right side
    15,519.24x = 188,560,336.73
  5. Step 5: Solve for x
    x = 188,560,336.73/15,519.24
  6. Step 6: Final answer
    x = 12,150.10

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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.