Home / 13,636.96-20,455.44-5,840.72

Finding the Fourth Proportional to 13,636.96, 20,455.44 and 5,840.72

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Solution

The fourth proportional to 13,636.96, 20,455.44 and 5,840.72 is: 8,761.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.96 : 20,455.44 = 5,840.72 : x
  2. Step 2: Convert to fraction form
    13,636.96/20,455.44 = 5,840.72/x
  3. Step 3: Cross multiply
    13,636.96x = 20,455.44 × 5,840.72
  4. Step 4: Simplify right side
    13,636.96x = 119,474,497.52
  5. Step 5: Solve for x
    x = 119,474,497.52/13,636.96
  6. Step 6: Final answer
    x = 8,761.08

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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.