Home / 8,423.11-12,630.57-3,158.92

Finding the Fourth Proportional to 8,423.11, 12,630.57 and 3,158.92

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Solution

The fourth proportional to 8,423.11, 12,630.57 and 3,158.92 is: 4,736.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.11 : 12,630.57 = 3,158.92 : x
  2. Step 2: Convert to fraction form
    8,423.11/12,630.57 = 3,158.92/x
  3. Step 3: Cross multiply
    8,423.11x = 12,630.57 × 3,158.92
  4. Step 4: Simplify right side
    8,423.11x = 39,898,960.18
  5. Step 5: Solve for x
    x = 39,898,960.18/8,423.11
  6. Step 6: Final answer
    x = 4,736.84

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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.