Home / 8,143.30-12,206.61-3,210.94

Finding the Fourth Proportional to 8,143.30, 12,206.61 and 3,210.94

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Solution

The fourth proportional to 8,143.30, 12,206.61 and 3,210.94 is: 4,813.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143.30 : 12,206.61 = 3,210.94 : x
  2. Step 2: Convert to fraction form
    8,143.30/12,206.61 = 3,210.94/x
  3. Step 3: Cross multiply
    8,143.30x = 12,206.61 × 3,210.94
  4. Step 4: Simplify right side
    8,143.30x = 39,194,692.31
  5. Step 5: Solve for x
    x = 39,194,692.31/8,143.30
  6. Step 6: Final answer
    x = 4,813.12

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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.