Home / 12,521.88-18,785.70-3,756.97

Finding the Fourth Proportional to 12,521.88, 18,785.70 and 3,756.97

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Solution

The fourth proportional to 12,521.88, 18,785.70 and 3,756.97 is: 5,636.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521.88 : 18,785.70 = 3,756.97 : x
  2. Step 2: Convert to fraction form
    12,521.88/18,785.70 = 3,756.97/x
  3. Step 3: Cross multiply
    12,521.88x = 18,785.70 × 3,756.97
  4. Step 4: Simplify right side
    12,521.88x = 70,577,311.33
  5. Step 5: Solve for x
    x = 70,577,311.33/12,521.88
  6. Step 6: Final answer
    x = 5,636.32

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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.