Home / 18,576.20-25,650.06-12,207.80

Finding the Fourth Proportional to 18,576.20, 25,650.06 and 12,207.80

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Solution

The fourth proportional to 18,576.20, 25,650.06 and 12,207.80 is: 16,856.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,576.20 : 25,650.06 = 12,207.80 : x
  2. Step 2: Convert to fraction form
    18,576.20/25,650.06 = 12,207.80/x
  3. Step 3: Cross multiply
    18,576.20x = 25,650.06 × 12,207.80
  4. Step 4: Simplify right side
    18,576.20x = 313,130,802.47
  5. Step 5: Solve for x
    x = 313,130,802.47/18,576.20
  6. Step 6: Final answer
    x = 16,856.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.