Home / 18,887.38-28,343.93-7,794.02

Finding the Fourth Proportional to 18,887.38, 28,343.93 and 7,794.02

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Solution

The fourth proportional to 18,887.38, 28,343.93 and 7,794.02 is: 11,696.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887.38 : 28,343.93 = 7,794.02 : x
  2. Step 2: Convert to fraction form
    18,887.38/28,343.93 = 7,794.02/x
  3. Step 3: Cross multiply
    18,887.38x = 28,343.93 × 7,794.02
  4. Step 4: Simplify right side
    18,887.38x = 220,913,189.19
  5. Step 5: Solve for x
    x = 220,913,189.19/18,887.38
  6. Step 6: Final answer
    x = 11,696.34

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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.