Home / 12,159.46-18,241.62-3,840.25

Finding the Fourth Proportional to 12,159.46, 18,241.62 and 3,840.25

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Solution

The fourth proportional to 12,159.46, 18,241.62 and 3,840.25 is: 5,761.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,159.46 : 18,241.62 = 3,840.25 : x
  2. Step 2: Convert to fraction form
    12,159.46/18,241.62 = 3,840.25/x
  3. Step 3: Cross multiply
    12,159.46x = 18,241.62 × 3,840.25
  4. Step 4: Simplify right side
    12,159.46x = 70,052,381.21
  5. Step 5: Solve for x
    x = 70,052,381.21/12,159.46
  6. Step 6: Final answer
    x = 5,761.14

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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.