Home / 8,152.20-12,235.28-8,090.84

Finding the Fourth Proportional to 8,152.20, 12,235.28 and 8,090.84

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Solution

The fourth proportional to 8,152.20, 12,235.28 and 8,090.84 is: 12,143.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,152.20 : 12,235.28 = 8,090.84 : x
  2. Step 2: Convert to fraction form
    8,152.20/12,235.28 = 8,090.84/x
  3. Step 3: Cross multiply
    8,152.20x = 12,235.28 × 8,090.84
  4. Step 4: Simplify right side
    8,152.20x = 98,993,692.84
  5. Step 5: Solve for x
    x = 98,993,692.84/8,152.20
  6. Step 6: Final answer
    x = 12,143.19

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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.