Home / 13,553.10-20,322.06-4,190.44

Finding the Fourth Proportional to 13,553.10, 20,322.06 and 4,190.44

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Solution

The fourth proportional to 13,553.10, 20,322.06 and 4,190.44 is: 6,283.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553.10 : 20,322.06 = 4,190.44 : x
  2. Step 2: Convert to fraction form
    13,553.10/20,322.06 = 4,190.44/x
  3. Step 3: Cross multiply
    13,553.10x = 20,322.06 × 4,190.44
  4. Step 4: Simplify right side
    13,553.10x = 85,158,373.11
  5. Step 5: Solve for x
    x = 85,158,373.11/13,553.10
  6. Step 6: Final answer
    x = 6,283.31

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1.5x scale

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.