Home / 18,739.36-25,861.84-10,356

Finding the Fourth Proportional to 18,739.36, 25,861.84 and 10,356

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Solution

The fourth proportional to 18,739.36, 25,861.84 and 10,356 is: 14,292.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,739.36 : 25,861.84 = 10,356 : x
  2. Step 2: Convert to fraction form
    18,739.36/25,861.84 = 10,356/x
  3. Step 3: Cross multiply
    18,739.36x = 25,861.84 × 10,356
  4. Step 4: Simplify right side
    18,739.36x = 267,825,215.04
  5. Step 5: Solve for x
    x = 267,825,215.04/18,739.36
  6. Step 6: Final answer
    x = 14,292.12

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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.