Home / 12,576.60-18,863.08-4,255.47

Finding the Fourth Proportional to 12,576.60, 18,863.08 and 4,255.47

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Solution

The fourth proportional to 12,576.60, 18,863.08 and 4,255.47 is: 6,382.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.60 : 18,863.08 = 4,255.47 : x
  2. Step 2: Convert to fraction form
    12,576.60/18,863.08 = 4,255.47/x
  3. Step 3: Cross multiply
    12,576.60x = 18,863.08 × 4,255.47
  4. Step 4: Simplify right side
    12,576.60x = 80,271,260.41
  5. Step 5: Solve for x
    x = 80,271,260.41/12,576.60
  6. Step 6: Final answer
    x = 6,382.59

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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.