Home / 13,612.66-20,414.67-4,376.50

Finding the Fourth Proportional to 13,612.66, 20,414.67 and 4,376.50

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Solution

The fourth proportional to 13,612.66, 20,414.67 and 4,376.50 is: 6,563.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612.66 : 20,414.67 = 4,376.50 : x
  2. Step 2: Convert to fraction form
    13,612.66/20,414.67 = 4,376.50/x
  3. Step 3: Cross multiply
    13,612.66x = 20,414.67 × 4,376.50
  4. Step 4: Simplify right side
    13,612.66x = 89,344,803.26
  5. Step 5: Solve for x
    x = 89,344,803.26/13,612.66
  6. Step 6: Final answer
    x = 6,563.36

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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.