Home / 7,983.85-12,002.81-6,434.73

Finding the Fourth Proportional to 7,983.85, 12,002.81 and 6,434.73

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Solution

The fourth proportional to 7,983.85, 12,002.81 and 6,434.73 is: 9,673.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,983.85 : 12,002.81 = 6,434.73 : x
  2. Step 2: Convert to fraction form
    7,983.85/12,002.81 = 6,434.73/x
  3. Step 3: Cross multiply
    7,983.85x = 12,002.81 × 6,434.73
  4. Step 4: Simplify right side
    7,983.85x = 77,234,841.59
  5. Step 5: Solve for x
    x = 77,234,841.59/7,983.85
  6. Step 6: Final answer
    x = 9,673.88

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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.