Home / 12,119.04-18,180.72-4,325.76

Finding the Fourth Proportional to 12,119.04, 18,180.72 and 4,325.76

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Solution

The fourth proportional to 12,119.04, 18,180.72 and 4,325.76 is: 6,489.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119.04 : 18,180.72 = 4,325.76 : x
  2. Step 2: Convert to fraction form
    12,119.04/18,180.72 = 4,325.76/x
  3. Step 3: Cross multiply
    12,119.04x = 18,180.72 × 4,325.76
  4. Step 4: Simplify right side
    12,119.04x = 78,645,431.35
  5. Step 5: Solve for x
    x = 78,645,431.35/12,119.04
  6. Step 6: Final answer
    x = 6,489.41

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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.