Home / 12,158.77-18,241.26-3,393.70

Finding the Fourth Proportional to 12,158.77, 18,241.26 and 3,393.70

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Solution

The fourth proportional to 12,158.77, 18,241.26 and 3,393.70 is: 5,091.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,158.77 : 18,241.26 = 3,393.70 : x
  2. Step 2: Convert to fraction form
    12,158.77/18,241.26 = 3,393.70/x
  3. Step 3: Cross multiply
    12,158.77x = 18,241.26 × 3,393.70
  4. Step 4: Simplify right side
    12,158.77x = 61,905,364.06
  5. Step 5: Solve for x
    x = 61,905,364.06/12,158.77
  6. Step 6: Final answer
    x = 5,091.42

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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.