Home / 8,425.32-12,638.46-3,495.30

Finding the Fourth Proportional to 8,425.32, 12,638.46 and 3,495.30

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Solution

The fourth proportional to 8,425.32, 12,638.46 and 3,495.30 is: 5,243.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,425.32 : 12,638.46 = 3,495.30 : x
  2. Step 2: Convert to fraction form
    8,425.32/12,638.46 = 3,495.30/x
  3. Step 3: Cross multiply
    8,425.32x = 12,638.46 × 3,495.30
  4. Step 4: Simplify right side
    8,425.32x = 44,175,209.24
  5. Step 5: Solve for x
    x = 44,175,209.24/8,425.32
  6. Step 6: Final answer
    x = 5,243.15

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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.