Home / 13,687.38-18,887.18-10,104.24

Finding the Fourth Proportional to 13,687.38, 18,887.18 and 10,104.24

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Solution

The fourth proportional to 13,687.38, 18,887.18 and 10,104.24 is: 13,942.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,687.38 : 18,887.18 = 10,104.24 : x
  2. Step 2: Convert to fraction form
    13,687.38/18,887.18 = 10,104.24/x
  3. Step 3: Cross multiply
    13,687.38x = 18,887.18 × 10,104.24
  4. Step 4: Simplify right side
    13,687.38x = 190,840,599.64
  5. Step 5: Solve for x
    x = 190,840,599.64/13,687.38
  6. Step 6: Final answer
    x = 13,942.81

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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.