Home / 8,259.30-12,390.15-2,711.70

Finding the Fourth Proportional to 8,259.30, 12,390.15 and 2,711.70

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Solution

The fourth proportional to 8,259.30, 12,390.15 and 2,711.70 is: 4,067.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,259.30 : 12,390.15 = 2,711.70 : x
  2. Step 2: Convert to fraction form
    8,259.30/12,390.15 = 2,711.70/x
  3. Step 3: Cross multiply
    8,259.30x = 12,390.15 × 2,711.70
  4. Step 4: Simplify right side
    8,259.30x = 33,598,369.76
  5. Step 5: Solve for x
    x = 33,598,369.76/8,259.30
  6. Step 6: Final answer
    x = 4,067.94

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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.