Home / 11,812.30-17,720.70-4,416.46

Finding the Fourth Proportional to 11,812.30, 17,720.70 and 4,416.46

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Solution

The fourth proportional to 11,812.30, 17,720.70 and 4,416.46 is: 6,625.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,812.30 : 17,720.70 = 4,416.46 : x
  2. Step 2: Convert to fraction form
    11,812.30/17,720.70 = 4,416.46/x
  3. Step 3: Cross multiply
    11,812.30x = 17,720.70 × 4,416.46
  4. Step 4: Simplify right side
    11,812.30x = 78,262,762.72
  5. Step 5: Solve for x
    x = 78,262,762.72/11,812.30
  6. Step 6: Final answer
    x = 6,625.53

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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.