Home / 12,785.92-19,180.80-4,576

Finding the Fourth Proportional to 12,785.92, 19,180.80 and 4,576

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Solution

The fourth proportional to 12,785.92, 19,180.80 and 4,576 is: 6,864.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785.92 : 19,180.80 = 4,576 : x
  2. Step 2: Convert to fraction form
    12,785.92/19,180.80 = 4,576/x
  3. Step 3: Cross multiply
    12,785.92x = 19,180.80 × 4,576
  4. Step 4: Simplify right side
    12,785.92x = 87,771,340.80
  5. Step 5: Solve for x
    x = 87,771,340.80/12,785.92
  6. Step 6: Final answer
    x = 6,864.69

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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.