Home / 11,712.07-16,165.35-7,176.09

Finding the Fourth Proportional to 11,712.07, 16,165.35 and 7,176.09

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Solution

The fourth proportional to 11,712.07, 16,165.35 and 7,176.09 is: 9,904.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,712.07 : 16,165.35 = 7,176.09 : x
  2. Step 2: Convert to fraction form
    11,712.07/16,165.35 = 7,176.09/x
  3. Step 3: Cross multiply
    11,712.07x = 16,165.35 × 7,176.09
  4. Step 4: Simplify right side
    11,712.07x = 116,004,046.92
  5. Step 5: Solve for x
    x = 116,004,046.92/11,712.07
  6. Step 6: Final answer
    x = 9,904.66

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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.