Home / 11,904.27-16,428.33-7,187.64

Finding the Fourth Proportional to 11,904.27, 16,428.33 and 7,187.64

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Solution

The fourth proportional to 11,904.27, 16,428.33 and 7,187.64 is: 9,919.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,904.27 : 16,428.33 = 7,187.64 : x
  2. Step 2: Convert to fraction form
    11,904.27/16,428.33 = 7,187.64/x
  3. Step 3: Cross multiply
    11,904.27x = 16,428.33 × 7,187.64
  4. Step 4: Simplify right side
    11,904.27x = 118,080,921.84
  5. Step 5: Solve for x
    x = 118,080,921.84/11,904.27
  6. Step 6: Final answer
    x = 9,919.21

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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.