Home / 12,423.06-18,636.87-4,103.64

Finding the Fourth Proportional to 12,423.06, 18,636.87 and 4,103.64

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Solution

The fourth proportional to 12,423.06, 18,636.87 and 4,103.64 is: 6,156.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,423.06 : 18,636.87 = 4,103.64 : x
  2. Step 2: Convert to fraction form
    12,423.06/18,636.87 = 4,103.64/x
  3. Step 3: Cross multiply
    12,423.06x = 18,636.87 × 4,103.64
  4. Step 4: Simplify right side
    12,423.06x = 76,479,005.21
  5. Step 5: Solve for x
    x = 76,479,005.21/12,423.06
  6. Step 6: Final answer
    x = 6,156.21

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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.