Home / 13,659.46-18,861.44-9,197.98

Finding the Fourth Proportional to 13,659.46, 18,861.44 and 9,197.98

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Solution

The fourth proportional to 13,659.46, 18,861.44 and 9,197.98 is: 12,700.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.46 : 18,861.44 = 9,197.98 : x
  2. Step 2: Convert to fraction form
    13,659.46/18,861.44 = 9,197.98/x
  3. Step 3: Cross multiply
    13,659.46x = 18,861.44 × 9,197.98
  4. Step 4: Simplify right side
    13,659.46x = 173,487,054.75
  5. Step 5: Solve for x
    x = 173,487,054.75/13,659.46
  6. Step 6: Final answer
    x = 12,700.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.