Home / 13,318.44-18,381.69-12,727.95

Finding the Fourth Proportional to 13,318.44, 18,381.69 and 12,727.95

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Solution

The fourth proportional to 13,318.44, 18,381.69 and 12,727.95 is: 17,566.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.44 : 18,381.69 = 12,727.95 : x
  2. Step 2: Convert to fraction form
    13,318.44/18,381.69 = 12,727.95/x
  3. Step 3: Cross multiply
    13,318.44x = 18,381.69 × 12,727.95
  4. Step 4: Simplify right side
    13,318.44x = 233,961,231.24
  5. Step 5: Solve for x
    x = 233,961,231.24/13,318.44
  6. Step 6: Final answer
    x = 17,566.71

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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.