Home / 14,516.75-21,778.77-4,128.50

Finding the Fourth Proportional to 14,516.75, 21,778.77 and 4,128.50

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Solution

The fourth proportional to 14,516.75, 21,778.77 and 4,128.50 is: 6,193.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,516.75 : 21,778.77 = 4,128.50 : x
  2. Step 2: Convert to fraction form
    14,516.75/21,778.77 = 4,128.50/x
  3. Step 3: Cross multiply
    14,516.75x = 21,778.77 × 4,128.50
  4. Step 4: Simplify right side
    14,516.75x = 89,913,543.05
  5. Step 5: Solve for x
    x = 89,913,543.05/14,516.75
  6. Step 6: Final answer
    x = 6,193.78

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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.