Home / 12,521.44-18,782.18-3,756.36

Finding the Fourth Proportional to 12,521.44, 18,782.18 and 3,756.36

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Solution

The fourth proportional to 12,521.44, 18,782.18 and 3,756.36 is: 5,634.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521.44 : 18,782.18 = 3,756.36 : x
  2. Step 2: Convert to fraction form
    12,521.44/18,782.18 = 3,756.36/x
  3. Step 3: Cross multiply
    12,521.44x = 18,782.18 × 3,756.36
  4. Step 4: Simplify right side
    12,521.44x = 70,552,629.66
  5. Step 5: Solve for x
    x = 70,552,629.66/12,521.44
  6. Step 6: Final answer
    x = 5,634.55

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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.