Home / 12,576.48-18,872.91-4,785.36

Finding the Fourth Proportional to 12,576.48, 18,872.91 and 4,785.36

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Solution

The fourth proportional to 12,576.48, 18,872.91 and 4,785.36 is: 7,181.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.48 : 18,872.91 = 4,785.36 : x
  2. Step 2: Convert to fraction form
    12,576.48/18,872.91 = 4,785.36/x
  3. Step 3: Cross multiply
    12,576.48x = 18,872.91 × 4,785.36
  4. Step 4: Simplify right side
    12,576.48x = 90,313,668.60
  5. Step 5: Solve for x
    x = 90,313,668.60/12,576.48
  6. Step 6: Final answer
    x = 7,181.16

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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.