Home / 18,653.36-25,742.16-10,156

Finding the Fourth Proportional to 18,653.36, 25,742.16 and 10,156

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Solution

The fourth proportional to 18,653.36, 25,742.16 and 10,156 is: 14,015.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,653.36 : 25,742.16 = 10,156 : x
  2. Step 2: Convert to fraction form
    18,653.36/25,742.16 = 10,156/x
  3. Step 3: Cross multiply
    18,653.36x = 25,742.16 × 10,156
  4. Step 4: Simplify right side
    18,653.36x = 261,437,376.96
  5. Step 5: Solve for x
    x = 261,437,376.96/18,653.36
  6. Step 6: Final answer
    x = 14,015.56

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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.