Home / 8,548.20-12,830.40-5,267.70

Finding the Fourth Proportional to 8,548.20, 12,830.40 and 5,267.70

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Solution

The fourth proportional to 8,548.20, 12,830.40 and 5,267.70 is: 7,906.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,548.20 : 12,830.40 = 5,267.70 : x
  2. Step 2: Convert to fraction form
    8,548.20/12,830.40 = 5,267.70/x
  3. Step 3: Cross multiply
    8,548.20x = 12,830.40 × 5,267.70
  4. Step 4: Simplify right side
    8,548.20x = 67,586,698.08
  5. Step 5: Solve for x
    x = 67,586,698.08/8,548.20
  6. Step 6: Final answer
    x = 7,906.54

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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.