Home / 7,938.72-11,908.56-2,095.34

Finding the Fourth Proportional to 7,938.72, 11,908.56 and 2,095.34

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Solution

The fourth proportional to 7,938.72, 11,908.56 and 2,095.34 is: 3,143.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.72 : 11,908.56 = 2,095.34 : x
  2. Step 2: Convert to fraction form
    7,938.72/11,908.56 = 2,095.34/x
  3. Step 3: Cross multiply
    7,938.72x = 11,908.56 × 2,095.34
  4. Step 4: Simplify right side
    7,938.72x = 24,952,422.57
  5. Step 5: Solve for x
    x = 24,952,422.57/7,938.72
  6. Step 6: Final answer
    x = 3,143.13

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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.