Home / 12,576.11-18,864.17-3,216.15

Finding the Fourth Proportional to 12,576.11, 18,864.17 and 3,216.15

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Solution

The fourth proportional to 12,576.11, 18,864.17 and 3,216.15 is: 4,824.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.11 : 18,864.17 = 3,216.15 : x
  2. Step 2: Convert to fraction form
    12,576.11/18,864.17 = 3,216.15/x
  3. Step 3: Cross multiply
    12,576.11x = 18,864.17 × 3,216.15
  4. Step 4: Simplify right side
    12,576.11x = 60,669,984.26
  5. Step 5: Solve for x
    x = 60,669,984.26/12,576.11
  6. Step 6: Final answer
    x = 4,824.22

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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.