Home / 18,699.17-28,029.50-8,167.22

Finding the Fourth Proportional to 18,699.17, 28,029.50 and 8,167.22

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Solution

The fourth proportional to 18,699.17, 28,029.50 and 8,167.22 is: 12,242.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,699.17 : 28,029.50 = 8,167.22 : x
  2. Step 2: Convert to fraction form
    18,699.17/28,029.50 = 8,167.22/x
  3. Step 3: Cross multiply
    18,699.17x = 28,029.50 × 8,167.22
  4. Step 4: Simplify right side
    18,699.17x = 228,922,912.01
  5. Step 5: Solve for x
    x = 228,922,912.01/18,699.17
  6. Step 6: Final answer
    x = 12,242.41

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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.