Home / 14,611.20-21,908.70-6,289.80

Finding the Fourth Proportional to 14,611.20, 21,908.70 and 6,289.80

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Solution

The fourth proportional to 14,611.20, 21,908.70 and 6,289.80 is: 9,431.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,611.20 : 21,908.70 = 6,289.80 : x
  2. Step 2: Convert to fraction form
    14,611.20/21,908.70 = 6,289.80/x
  3. Step 3: Cross multiply
    14,611.20x = 21,908.70 × 6,289.80
  4. Step 4: Simplify right side
    14,611.20x = 137,801,341.26
  5. Step 5: Solve for x
    x = 137,801,341.26/14,611.20
  6. Step 6: Final answer
    x = 9,431.21

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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.