Home / 14,154.08-21,231.04-4,920

Finding the Fourth Proportional to 14,154.08, 21,231.04 and 4,920

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Solution

The fourth proportional to 14,154.08, 21,231.04 and 4,920 is: 7,379.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,154.08 : 21,231.04 = 4,920 : x
  2. Step 2: Convert to fraction form
    14,154.08/21,231.04 = 4,920/x
  3. Step 3: Cross multiply
    14,154.08x = 21,231.04 × 4,920
  4. Step 4: Simplify right side
    14,154.08x = 104,456,716.80
  5. Step 5: Solve for x
    x = 104,456,716.80/14,154.08
  6. Step 6: Final answer
    x = 7,379.97

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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.