Home / 9,113.21-13,662.30-4,115.90

Finding the Fourth Proportional to 9,113.21, 13,662.30 and 4,115.90

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Solution

The fourth proportional to 9,113.21, 13,662.30 and 4,115.90 is: 6,170.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,113.21 : 13,662.30 = 4,115.90 : x
  2. Step 2: Convert to fraction form
    9,113.21/13,662.30 = 4,115.90/x
  3. Step 3: Cross multiply
    9,113.21x = 13,662.30 × 4,115.90
  4. Step 4: Simplify right side
    9,113.21x = 56,232,660.57
  5. Step 5: Solve for x
    x = 56,232,660.57/9,113.21
  6. Step 6: Final answer
    x = 6,170.46

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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.