Home / 18,771.04-28,160.40-7,084

Finding the Fourth Proportional to 18,771.04, 28,160.40 and 7,084

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Solution

The fourth proportional to 18,771.04, 28,160.40 and 7,084 is: 10,627.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,771.04 : 28,160.40 = 7,084 : x
  2. Step 2: Convert to fraction form
    18,771.04/28,160.40 = 7,084/x
  3. Step 3: Cross multiply
    18,771.04x = 28,160.40 × 7,084
  4. Step 4: Simplify right side
    18,771.04x = 199,488,273.60
  5. Step 5: Solve for x
    x = 199,488,273.60/18,771.04
  6. Step 6: Final answer
    x = 10,627.45

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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.