Home / 12,576.40-18,864.60-3,216.44

Finding the Fourth Proportional to 12,576.40, 18,864.60 and 3,216.44

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Solution

The fourth proportional to 12,576.40, 18,864.60 and 3,216.44 is: 4,824.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.40 : 18,864.60 = 3,216.44 : x
  2. Step 2: Convert to fraction form
    12,576.40/18,864.60 = 3,216.44/x
  3. Step 3: Cross multiply
    12,576.40x = 18,864.60 × 3,216.44
  4. Step 4: Simplify right side
    12,576.40x = 60,676,854.02
  5. Step 5: Solve for x
    x = 60,676,854.02/12,576.40
  6. Step 6: Final answer
    x = 4,824.66

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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.