Home / 18,942.48-28,397.52-7,264.08

Finding the Fourth Proportional to 18,942.48, 28,397.52 and 7,264.08

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Solution

The fourth proportional to 18,942.48, 28,397.52 and 7,264.08 is: 10,889.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.48 : 28,397.52 = 7,264.08 : x
  2. Step 2: Convert to fraction form
    18,942.48/28,397.52 = 7,264.08/x
  3. Step 3: Cross multiply
    18,942.48x = 28,397.52 × 7,264.08
  4. Step 4: Simplify right side
    18,942.48x = 206,281,857.08
  5. Step 5: Solve for x
    x = 206,281,857.08/18,942.48
  6. Step 6: Final answer
    x = 10,889.91

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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.