Home / 8,158.46-12,235.95-2,315.12

Finding the Fourth Proportional to 8,158.46, 12,235.95 and 2,315.12

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Solution

The fourth proportional to 8,158.46, 12,235.95 and 2,315.12 is: 3,472.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,158.46 : 12,235.95 = 2,315.12 : x
  2. Step 2: Convert to fraction form
    8,158.46/12,235.95 = 2,315.12/x
  3. Step 3: Cross multiply
    8,158.46x = 12,235.95 × 2,315.12
  4. Step 4: Simplify right side
    8,158.46x = 28,327,692.56
  5. Step 5: Solve for x
    x = 28,327,692.56/8,158.46
  6. Step 6: Final answer
    x = 3,472.19

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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.