Home / 12,443.38-18,664.03-4,120.67

Finding the Fourth Proportional to 12,443.38, 18,664.03 and 4,120.67

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Solution

The fourth proportional to 12,443.38, 18,664.03 and 4,120.67 is: 6,180.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,443.38 : 18,664.03 = 4,120.67 : x
  2. Step 2: Convert to fraction form
    12,443.38/18,664.03 = 4,120.67/x
  3. Step 3: Cross multiply
    12,443.38x = 18,664.03 × 4,120.67
  4. Step 4: Simplify right side
    12,443.38x = 76,908,366.11
  5. Step 5: Solve for x
    x = 76,908,366.11/12,443.38
  6. Step 6: Final answer
    x = 6,180.66

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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.