Home / 12,576.32-18,864.75-3,811.22

Finding the Fourth Proportional to 12,576.32, 18,864.75 and 3,811.22

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Solution

The fourth proportional to 12,576.32, 18,864.75 and 3,811.22 is: 5,716.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.32 : 18,864.75 = 3,811.22 : x
  2. Step 2: Convert to fraction form
    12,576.32/18,864.75 = 3,811.22/x
  3. Step 3: Cross multiply
    12,576.32x = 18,864.75 × 3,811.22
  4. Step 4: Simplify right side
    12,576.32x = 71,897,712.50
  5. Step 5: Solve for x
    x = 71,897,712.50/12,576.32
  6. Step 6: Final answer
    x = 5,716.91

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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.