Home / 10,489.20-14,476.68-6,299.76

Finding the Fourth Proportional to 10,489.20, 14,476.68 and 6,299.76

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Solution

The fourth proportional to 10,489.20, 14,476.68 and 6,299.76 is: 8,694.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,489.20 : 14,476.68 = 6,299.76 : x
  2. Step 2: Convert to fraction form
    10,489.20/14,476.68 = 6,299.76/x
  3. Step 3: Cross multiply
    10,489.20x = 14,476.68 × 6,299.76
  4. Step 4: Simplify right side
    10,489.20x = 91,199,609.60
  5. Step 5: Solve for x
    x = 91,199,609.60/10,489.20
  6. Step 6: Final answer
    x = 8,694.62

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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.