Home / 14,519.79-21,779.69-4,131.54

Finding the Fourth Proportional to 14,519.79, 21,779.69 and 4,131.54

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Solution

The fourth proportional to 14,519.79, 21,779.69 and 4,131.54 is: 6,197.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,519.79 : 21,779.69 = 4,131.54 : x
  2. Step 2: Convert to fraction form
    14,519.79/21,779.69 = 4,131.54/x
  3. Step 3: Cross multiply
    14,519.79x = 21,779.69 × 4,131.54
  4. Step 4: Simplify right side
    14,519.79x = 89,983,639.76
  5. Step 5: Solve for x
    x = 89,983,639.76/14,519.79
  6. Step 6: Final answer
    x = 6,197.31

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1.5x scale

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.