Home / 13,622.50-18,786.57-8,837.46

Finding the Fourth Proportional to 13,622.50, 18,786.57 and 8,837.46

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Solution

The fourth proportional to 13,622.50, 18,786.57 and 8,837.46 is: 12,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.50 : 18,786.57 = 8,837.46 : x
  2. Step 2: Convert to fraction form
    13,622.50/18,786.57 = 8,837.46/x
  3. Step 3: Cross multiply
    13,622.50x = 18,786.57 × 8,837.46
  4. Step 4: Simplify right side
    13,622.50x = 166,025,560.91
  5. Step 5: Solve for x
    x = 166,025,560.91/13,622.50
  6. Step 6: Final answer
    x = 12,187.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.