Home / 12,576.62-18,867.72-4,785.50

Finding the Fourth Proportional to 12,576.62, 18,867.72 and 4,785.50

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Solution

The fourth proportional to 12,576.62, 18,867.72 and 4,785.50 is: 7,179.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.62 : 18,867.72 = 4,785.50 : x
  2. Step 2: Convert to fraction form
    12,576.62/18,867.72 = 4,785.50/x
  3. Step 3: Cross multiply
    12,576.62x = 18,867.72 × 4,785.50
  4. Step 4: Simplify right side
    12,576.62x = 90,291,474.06
  5. Step 5: Solve for x
    x = 90,291,474.06/12,576.62
  6. Step 6: Final answer
    x = 7,179.31

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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.