Home / 12,126.18-18,178.22-4,333.16

Finding the Fourth Proportional to 12,126.18, 18,178.22 and 4,333.16

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Solution

The fourth proportional to 12,126.18, 18,178.22 and 4,333.16 is: 6,495.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126.18 : 18,178.22 = 4,333.16 : x
  2. Step 2: Convert to fraction form
    12,126.18/18,178.22 = 4,333.16/x
  3. Step 3: Cross multiply
    12,126.18x = 18,178.22 × 4,333.16
  4. Step 4: Simplify right side
    12,126.18x = 78,769,135.78
  5. Step 5: Solve for x
    x = 78,769,135.78/12,126.18
  6. Step 6: Final answer
    x = 6,495.79

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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.