Home / 13,914.32-20,865-6,008.72

Finding the Fourth Proportional to 13,914.32, 20,865 and 6,008.72

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Solution

The fourth proportional to 13,914.32, 20,865 and 6,008.72 is: 9,010.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,914.32 : 20,865 = 6,008.72 : x
  2. Step 2: Convert to fraction form
    13,914.32/20,865 = 6,008.72/x
  3. Step 3: Cross multiply
    13,914.32x = 20,865 × 6,008.72
  4. Step 4: Simplify right side
    13,914.32x = 125,371,942.80
  5. Step 5: Solve for x
    x = 125,371,942.80/13,914.32
  6. Step 6: Final answer
    x = 9,010.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.