Home / 12,363.80-18,531.30-4,964.60

Finding the Fourth Proportional to 12,363.80, 18,531.30 and 4,964.60

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Solution

The fourth proportional to 12,363.80, 18,531.30 and 4,964.60 is: 7,441.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,363.80 : 18,531.30 = 4,964.60 : x
  2. Step 2: Convert to fraction form
    12,363.80/18,531.30 = 4,964.60/x
  3. Step 3: Cross multiply
    12,363.80x = 18,531.30 × 4,964.60
  4. Step 4: Simplify right side
    12,363.80x = 92,000,491.98
  5. Step 5: Solve for x
    x = 92,000,491.98/12,363.80
  6. Step 6: Final answer
    x = 7,441.12

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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.