Home / 8,114.31-12,171.55-3,184.45

Finding the Fourth Proportional to 8,114.31, 12,171.55 and 3,184.45

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Solution

The fourth proportional to 8,114.31, 12,171.55 and 3,184.45 is: 4,776.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,114.31 : 12,171.55 = 3,184.45 : x
  2. Step 2: Convert to fraction form
    8,114.31/12,171.55 = 3,184.45/x
  3. Step 3: Cross multiply
    8,114.31x = 12,171.55 × 3,184.45
  4. Step 4: Simplify right side
    8,114.31x = 38,759,692.40
  5. Step 5: Solve for x
    x = 38,759,692.40/8,114.31
  6. Step 6: Final answer
    x = 4,776.71

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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.