Home / 14,078.86-21,110.50-5,764.72

Finding the Fourth Proportional to 14,078.86, 21,110.50 and 5,764.72

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Solution

The fourth proportional to 14,078.86, 21,110.50 and 5,764.72 is: 8,643.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078.86 : 21,110.50 = 5,764.72 : x
  2. Step 2: Convert to fraction form
    14,078.86/21,110.50 = 5,764.72/x
  3. Step 3: Cross multiply
    14,078.86x = 21,110.50 × 5,764.72
  4. Step 4: Simplify right side
    14,078.86x = 121,696,121.56
  5. Step 5: Solve for x
    x = 121,696,121.56/14,078.86
  6. Step 6: Final answer
    x = 8,643.89

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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.