Home / 13,601.39-18,771.98-8,299.28

Finding the Fourth Proportional to 13,601.39, 18,771.98 and 8,299.28

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Solution

The fourth proportional to 13,601.39, 18,771.98 and 8,299.28 is: 11,454.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.39 : 18,771.98 = 8,299.28 : x
  2. Step 2: Convert to fraction form
    13,601.39/18,771.98 = 8,299.28/x
  3. Step 3: Cross multiply
    13,601.39x = 18,771.98 × 8,299.28
  4. Step 4: Simplify right side
    13,601.39x = 155,793,923.61
  5. Step 5: Solve for x
    x = 155,793,923.61/13,601.39
  6. Step 6: Final answer
    x = 11,454.27

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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.