Home / 8,361.24-12,541.85-2,121.72

Finding the Fourth Proportional to 8,361.24, 12,541.85 and 2,121.72

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Solution

The fourth proportional to 8,361.24, 12,541.85 and 2,121.72 is: 3,182.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,361.24 : 12,541.85 = 2,121.72 : x
  2. Step 2: Convert to fraction form
    8,361.24/12,541.85 = 2,121.72/x
  3. Step 3: Cross multiply
    8,361.24x = 12,541.85 × 2,121.72
  4. Step 4: Simplify right side
    8,361.24x = 26,610,256.23
  5. Step 5: Solve for x
    x = 26,610,256.23/8,361.24
  6. Step 6: Final answer
    x = 3,182.57

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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.