Home / 12,521.85-18,785.49-3,756.06

Finding the Fourth Proportional to 12,521.85, 18,785.49 and 3,756.06

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Solution

The fourth proportional to 12,521.85, 18,785.49 and 3,756.06 is: 5,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521.85 : 18,785.49 = 3,756.06 : x
  2. Step 2: Convert to fraction form
    12,521.85/18,785.49 = 3,756.06/x
  3. Step 3: Cross multiply
    12,521.85x = 18,785.49 × 3,756.06
  4. Step 4: Simplify right side
    12,521.85x = 70,559,427.57
  5. Step 5: Solve for x
    x = 70,559,427.57/12,521.85
  6. Step 6: Final answer
    x = 5,634.90

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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.