Home / 11,716.31-16,169.32-7,730.51

Finding the Fourth Proportional to 11,716.31, 16,169.32 and 7,730.51

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Solution

The fourth proportional to 11,716.31, 16,169.32 and 7,730.51 is: 10,668.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,716.31 : 16,169.32 = 7,730.51 : x
  2. Step 2: Convert to fraction form
    11,716.31/16,169.32 = 7,730.51/x
  3. Step 3: Cross multiply
    11,716.31x = 16,169.32 × 7,730.51
  4. Step 4: Simplify right side
    11,716.31x = 124,997,018.77
  5. Step 5: Solve for x
    x = 124,997,018.77/11,716.31
  6. Step 6: Final answer
    x = 10,668.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.