Home / 18,132.60-27,199.57-4,986

Finding the Fourth Proportional to 18,132.60, 27,199.57 and 4,986

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Solution

The fourth proportional to 18,132.60, 27,199.57 and 4,986 is: 7,479.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,132.60 : 27,199.57 = 4,986 : x
  2. Step 2: Convert to fraction form
    18,132.60/27,199.57 = 4,986/x
  3. Step 3: Cross multiply
    18,132.60x = 27,199.57 × 4,986
  4. Step 4: Simplify right side
    18,132.60x = 135,617,056.02
  5. Step 5: Solve for x
    x = 135,617,056.02/18,132.60
  6. Step 6: Final answer
    x = 7,479.18

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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.