Home / 10,623.60-14,651.82-8,119.92

Finding the Fourth Proportional to 10,623.60, 14,651.82 and 8,119.92

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Solution

The fourth proportional to 10,623.60, 14,651.82 and 8,119.92 is: 11,198.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,623.60 : 14,651.82 = 8,119.92 : x
  2. Step 2: Convert to fraction form
    10,623.60/14,651.82 = 8,119.92/x
  3. Step 3: Cross multiply
    10,623.60x = 14,651.82 × 8,119.92
  4. Step 4: Simplify right side
    10,623.60x = 118,971,606.25
  5. Step 5: Solve for x
    x = 118,971,606.25/10,623.60
  6. Step 6: Final answer
    x = 11,198.80

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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.