Home / 43,677.12-65,504.32-12,505.12

Finding the Fourth Proportional to 43,677.12, 65,504.32 and 12,505.12

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Solution

The fourth proportional to 43,677.12, 65,504.32 and 12,505.12 is: 18,754.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,677.12 : 65,504.32 = 12,505.12 : x
  2. Step 2: Convert to fraction form
    43,677.12/65,504.32 = 12,505.12/x
  3. Step 3: Cross multiply
    43,677.12x = 65,504.32 × 12,505.12
  4. Step 4: Simplify right side
    43,677.12x = 819,139,382.12
  5. Step 5: Solve for x
    x = 819,139,382.12/43,677.12
  6. Step 6: Final answer
    x = 18,754.43

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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.