Home / 14,520.95-21,778.81-3,847.38

Finding the Fourth Proportional to 14,520.95, 21,778.81 and 3,847.38

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Solution

The fourth proportional to 14,520.95, 21,778.81 and 3,847.38 is: 5,770.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.95 : 21,778.81 = 3,847.38 : x
  2. Step 2: Convert to fraction form
    14,520.95/21,778.81 = 3,847.38/x
  3. Step 3: Cross multiply
    14,520.95x = 21,778.81 × 3,847.38
  4. Step 4: Simplify right side
    14,520.95x = 83,791,358.02
  5. Step 5: Solve for x
    x = 83,791,358.02/14,520.95
  6. Step 6: Final answer
    x = 5,770.38

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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.