Home / 14,519.43-21,779.28-5,159.61

Finding the Fourth Proportional to 14,519.43, 21,779.28 and 5,159.61

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Solution

The fourth proportional to 14,519.43, 21,779.28 and 5,159.61 is: 7,739.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,519.43 : 21,779.28 = 5,159.61 : x
  2. Step 2: Convert to fraction form
    14,519.43/21,779.28 = 5,159.61/x
  3. Step 3: Cross multiply
    14,519.43x = 21,779.28 × 5,159.61
  4. Step 4: Simplify right side
    14,519.43x = 112,372,590.88
  5. Step 5: Solve for x
    x = 112,372,590.88/14,519.43
  6. Step 6: Final answer
    x = 7,739.46

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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.