Home / 18,133.10-27,200.32-4,986.50

Finding the Fourth Proportional to 18,133.10, 27,200.32 and 4,986.50

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Solution

The fourth proportional to 18,133.10, 27,200.32 and 4,986.50 is: 7,479.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,133.10 : 27,200.32 = 4,986.50 : x
  2. Step 2: Convert to fraction form
    18,133.10/27,200.32 = 4,986.50/x
  3. Step 3: Cross multiply
    18,133.10x = 27,200.32 × 4,986.50
  4. Step 4: Simplify right side
    18,133.10x = 135,634,395.68
  5. Step 5: Solve for x
    x = 135,634,395.68/18,133.10
  6. Step 6: Final answer
    x = 7,479.93

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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.