Home / 14,147.56-21,219.90-3,760.12

Finding the Fourth Proportional to 14,147.56, 21,219.90 and 3,760.12

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Solution

The fourth proportional to 14,147.56, 21,219.90 and 3,760.12 is: 5,639.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.56 : 21,219.90 = 3,760.12 : x
  2. Step 2: Convert to fraction form
    14,147.56/21,219.90 = 3,760.12/x
  3. Step 3: Cross multiply
    14,147.56x = 21,219.90 × 3,760.12
  4. Step 4: Simplify right side
    14,147.56x = 79,789,370.39
  5. Step 5: Solve for x
    x = 79,789,370.39/14,147.56
  6. Step 6: Final answer
    x = 5,639.80

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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.