Home / 11,678.69-17,518.04-2,913.58

Finding the Fourth Proportional to 11,678.69, 17,518.04 and 2,913.58

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Solution

The fourth proportional to 11,678.69, 17,518.04 and 2,913.58 is: 4,370.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,678.69 : 17,518.04 = 2,913.58 : x
  2. Step 2: Convert to fraction form
    11,678.69/17,518.04 = 2,913.58/x
  3. Step 3: Cross multiply
    11,678.69x = 17,518.04 × 2,913.58
  4. Step 4: Simplify right side
    11,678.69x = 51,040,229.24
  5. Step 5: Solve for x
    x = 51,040,229.24/11,678.69
  6. Step 6: Final answer
    x = 4,370.37

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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.