Home / 12,436.20-18,655.26-3,670.92

Finding the Fourth Proportional to 12,436.20, 18,655.26 and 3,670.92

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Solution

The fourth proportional to 12,436.20, 18,655.26 and 3,670.92 is: 5,506.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,436.20 : 18,655.26 = 3,670.92 : x
  2. Step 2: Convert to fraction form
    12,436.20/18,655.26 = 3,670.92/x
  3. Step 3: Cross multiply
    12,436.20x = 18,655.26 × 3,670.92
  4. Step 4: Simplify right side
    12,436.20x = 68,481,967.04
  5. Step 5: Solve for x
    x = 68,481,967.04/12,436.20
  6. Step 6: Final answer
    x = 5,506.66

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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.