Home / 13,748.92-20,622.30-4,389.28

Finding the Fourth Proportional to 13,748.92, 20,622.30 and 4,389.28

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Solution

The fourth proportional to 13,748.92, 20,622.30 and 4,389.28 is: 6,583.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.92 : 20,622.30 = 4,389.28 : x
  2. Step 2: Convert to fraction form
    13,748.92/20,622.30 = 4,389.28/x
  3. Step 3: Cross multiply
    13,748.92x = 20,622.30 × 4,389.28
  4. Step 4: Simplify right side
    13,748.92x = 90,517,048.94
  5. Step 5: Solve for x
    x = 90,517,048.94/13,748.92
  6. Step 6: Final answer
    x = 6,583.58

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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.