Home / 8,576.20-12,864.30-4,202.20

Finding the Fourth Proportional to 8,576.20, 12,864.30 and 4,202.20

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Solution

The fourth proportional to 8,576.20, 12,864.30 and 4,202.20 is: 6,303.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,576.20 : 12,864.30 = 4,202.20 : x
  2. Step 2: Convert to fraction form
    8,576.20/12,864.30 = 4,202.20/x
  3. Step 3: Cross multiply
    8,576.20x = 12,864.30 × 4,202.20
  4. Step 4: Simplify right side
    8,576.20x = 54,058,361.46
  5. Step 5: Solve for x
    x = 54,058,361.46/8,576.20
  6. Step 6: Final answer
    x = 6,303.30

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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.