Home / 14,089.81-21,134.67-4,229.05

Finding the Fourth Proportional to 14,089.81, 21,134.67 and 4,229.05

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Solution

The fourth proportional to 14,089.81, 21,134.67 and 4,229.05 is: 6,343.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,089.81 : 21,134.67 = 4,229.05 : x
  2. Step 2: Convert to fraction form
    14,089.81/21,134.67 = 4,229.05/x
  3. Step 3: Cross multiply
    14,089.81x = 21,134.67 × 4,229.05
  4. Step 4: Simplify right side
    14,089.81x = 89,379,576.16
  5. Step 5: Solve for x
    x = 89,379,576.16/14,089.81
  6. Step 6: Final answer
    x = 6,343.56

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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.