Home / 13,562.40-20,343.81-3,702.48

Finding the Fourth Proportional to 13,562.40, 20,343.81 and 3,702.48

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Solution

The fourth proportional to 13,562.40, 20,343.81 and 3,702.48 is: 5,553.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,562.40 : 20,343.81 = 3,702.48 : x
  2. Step 2: Convert to fraction form
    13,562.40/20,343.81 = 3,702.48/x
  3. Step 3: Cross multiply
    13,562.40x = 20,343.81 × 3,702.48
  4. Step 4: Simplify right side
    13,562.40x = 75,322,549.65
  5. Step 5: Solve for x
    x = 75,322,549.65/13,562.40
  6. Step 6: Final answer
    x = 5,553.78

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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.