Home / 14,119.16-21,180.69-4,761.86

Finding the Fourth Proportional to 14,119.16, 21,180.69 and 4,761.86

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Solution

The fourth proportional to 14,119.16, 21,180.69 and 4,761.86 is: 7,143.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,119.16 : 21,180.69 = 4,761.86 : x
  2. Step 2: Convert to fraction form
    14,119.16/21,180.69 = 4,761.86/x
  3. Step 3: Cross multiply
    14,119.16x = 21,180.69 × 4,761.86
  4. Step 4: Simplify right side
    14,119.16x = 100,859,374.58
  5. Step 5: Solve for x
    x = 100,859,374.58/14,119.16
  6. Step 6: Final answer
    x = 7,143.44

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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.