Home / 12,186.18-18,276.45-3,864.64

Finding the Fourth Proportional to 12,186.18, 18,276.45 and 3,864.64

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Solution

The fourth proportional to 12,186.18, 18,276.45 and 3,864.64 is: 5,796.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,186.18 : 18,276.45 = 3,864.64 : x
  2. Step 2: Convert to fraction form
    12,186.18/18,276.45 = 3,864.64/x
  3. Step 3: Cross multiply
    12,186.18x = 18,276.45 × 3,864.64
  4. Step 4: Simplify right side
    12,186.18x = 70,631,880.40
  5. Step 5: Solve for x
    x = 70,631,880.40/12,186.18
  6. Step 6: Final answer
    x = 5,796.07

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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.