Home / 13,800.17-20,699.82-8,216.15

Finding the Fourth Proportional to 13,800.17, 20,699.82 and 8,216.15

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Solution

The fourth proportional to 13,800.17, 20,699.82 and 8,216.15 is: 12,323.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,800.17 : 20,699.82 = 8,216.15 : x
  2. Step 2: Convert to fraction form
    13,800.17/20,699.82 = 8,216.15/x
  3. Step 3: Cross multiply
    13,800.17x = 20,699.82 × 8,216.15
  4. Step 4: Simplify right side
    13,800.17x = 170,072,722.59
  5. Step 5: Solve for x
    x = 170,072,722.59/13,800.17
  6. Step 6: Final answer
    x = 12,323.96

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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.