Home / 18,325.60-27,485.36-5,174.96

Finding the Fourth Proportional to 18,325.60, 27,485.36 and 5,174.96

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Solution

The fourth proportional to 18,325.60, 27,485.36 and 5,174.96 is: 7,761.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,325.60 : 27,485.36 = 5,174.96 : x
  2. Step 2: Convert to fraction form
    18,325.60/27,485.36 = 5,174.96/x
  3. Step 3: Cross multiply
    18,325.60x = 27,485.36 × 5,174.96
  4. Step 4: Simplify right side
    18,325.60x = 142,235,638.59
  5. Step 5: Solve for x
    x = 142,235,638.59/18,325.60
  6. Step 6: Final answer
    x = 7,761.58

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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.