Home / 13,106.43-18,092.84-8,630.37

Finding the Fourth Proportional to 13,106.43, 18,092.84 and 8,630.37

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Solution

The fourth proportional to 13,106.43, 18,092.84 and 8,630.37 is: 11,913.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106.43 : 18,092.84 = 8,630.37 : x
  2. Step 2: Convert to fraction form
    13,106.43/18,092.84 = 8,630.37/x
  3. Step 3: Cross multiply
    13,106.43x = 18,092.84 × 8,630.37
  4. Step 4: Simplify right side
    13,106.43x = 156,147,860.40
  5. Step 5: Solve for x
    x = 156,147,860.40/13,106.43
  6. Step 6: Final answer
    x = 11,913.84

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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.