Home / 10,609.12-14,634.48-8,621.92

Finding the Fourth Proportional to 10,609.12, 14,634.48 and 8,621.92

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Solution

The fourth proportional to 10,609.12, 14,634.48 and 8,621.92 is: 11,893.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,609.12 : 14,634.48 = 8,621.92 : x
  2. Step 2: Convert to fraction form
    10,609.12/14,634.48 = 8,621.92/x
  3. Step 3: Cross multiply
    10,609.12x = 14,634.48 × 8,621.92
  4. Step 4: Simplify right side
    10,609.12x = 126,177,315.80
  5. Step 5: Solve for x
    x = 126,177,315.80/10,609.12
  6. Step 6: Final answer
    x = 11,893.29

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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.