Home / 10,711.49-16,067.91-3,315.32

Finding the Fourth Proportional to 10,711.49, 16,067.91 and 3,315.32

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Solution

The fourth proportional to 10,711.49, 16,067.91 and 3,315.32 is: 4,973.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,711.49 : 16,067.91 = 3,315.32 : x
  2. Step 2: Convert to fraction form
    10,711.49/16,067.91 = 3,315.32/x
  3. Step 3: Cross multiply
    10,711.49x = 16,067.91 × 3,315.32
  4. Step 4: Simplify right side
    10,711.49x = 53,270,291.12
  5. Step 5: Solve for x
    x = 53,270,291.12/10,711.49
  6. Step 6: Final answer
    x = 4,973.19

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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.