Home / 11,678.31-17,517.38-2,913.17

Finding the Fourth Proportional to 11,678.31, 17,517.38 and 2,913.17

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Solution

The fourth proportional to 11,678.31, 17,517.38 and 2,913.17 is: 4,369.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,678.31 : 17,517.38 = 2,913.17 : x
  2. Step 2: Convert to fraction form
    11,678.31/17,517.38 = 2,913.17/x
  3. Step 3: Cross multiply
    11,678.31x = 17,517.38 × 2,913.17
  4. Step 4: Simplify right side
    11,678.31x = 51,031,003.74
  5. Step 5: Solve for x
    x = 51,031,003.74/11,678.31
  6. Step 6: Final answer
    x = 4,369.73

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1.5x scale

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.