Home / 13,770.77-18,861.26-12,962.90

Finding the Fourth Proportional to 13,770.77, 18,861.26 and 12,962.90

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Solution

The fourth proportional to 13,770.77, 18,861.26 and 12,962.90 is: 17,754.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,770.77 : 18,861.26 = 12,962.90 : x
  2. Step 2: Convert to fraction form
    13,770.77/18,861.26 = 12,962.90/x
  3. Step 3: Cross multiply
    13,770.77x = 18,861.26 × 12,962.90
  4. Step 4: Simplify right side
    13,770.77x = 244,496,609.59
  5. Step 5: Solve for x
    x = 244,496,609.59/13,770.77
  6. Step 6: Final answer
    x = 17,754.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.