Home / 14,102.80-21,152.60-3,715.36

Finding the Fourth Proportional to 14,102.80, 21,152.60 and 3,715.36

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Solution

The fourth proportional to 14,102.80, 21,152.60 and 3,715.36 is: 5,572.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,102.80 : 21,152.60 = 3,715.36 : x
  2. Step 2: Convert to fraction form
    14,102.80/21,152.60 = 3,715.36/x
  3. Step 3: Cross multiply
    14,102.80x = 21,152.60 × 3,715.36
  4. Step 4: Simplify right side
    14,102.80x = 78,589,523.94
  5. Step 5: Solve for x
    x = 78,589,523.94/14,102.80
  6. Step 6: Final answer
    x = 5,572.62

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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.