Home / 18,405.50-27,597.72-8,539.70

Finding the Fourth Proportional to 18,405.50, 27,597.72 and 8,539.70

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Solution

The fourth proportional to 18,405.50, 27,597.72 and 8,539.70 is: 12,804.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405.50 : 27,597.72 = 8,539.70 : x
  2. Step 2: Convert to fraction form
    18,405.50/27,597.72 = 8,539.70/x
  3. Step 3: Cross multiply
    18,405.50x = 27,597.72 × 8,539.70
  4. Step 4: Simplify right side
    18,405.50x = 235,676,249.48
  5. Step 5: Solve for x
    x = 235,676,249.48/18,405.50
  6. Step 6: Final answer
    x = 12,804.66

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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.