Home / 13,650.21-20,471.51-3,787.14

Finding the Fourth Proportional to 13,650.21, 20,471.51 and 3,787.14

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Solution

The fourth proportional to 13,650.21, 20,471.51 and 3,787.14 is: 5,679.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.21 : 20,471.51 = 3,787.14 : x
  2. Step 2: Convert to fraction form
    13,650.21/20,471.51 = 3,787.14/x
  3. Step 3: Cross multiply
    13,650.21x = 20,471.51 × 3,787.14
  4. Step 4: Simplify right side
    13,650.21x = 77,528,455.45
  5. Step 5: Solve for x
    x = 77,528,455.45/13,650.21
  6. Step 6: Final answer
    x = 5,679.65

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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.