Home / 8,200.20-12,300.30-4,304.10

Finding the Fourth Proportional to 8,200.20, 12,300.30 and 4,304.10

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Solution

The fourth proportional to 8,200.20, 12,300.30 and 4,304.10 is: 6,456.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,200.20 : 12,300.30 = 4,304.10 : x
  2. Step 2: Convert to fraction form
    8,200.20/12,300.30 = 4,304.10/x
  3. Step 3: Cross multiply
    8,200.20x = 12,300.30 × 4,304.10
  4. Step 4: Simplify right side
    8,200.20x = 52,941,721.23
  5. Step 5: Solve for x
    x = 52,941,721.23/8,200.20
  6. Step 6: Final answer
    x = 6,456.15

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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.