Home / 10,313.82-15,439.02-6,619.61

Finding the Fourth Proportional to 10,313.82, 15,439.02 and 6,619.61

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Solution

The fourth proportional to 10,313.82, 15,439.02 and 6,619.61 is: 9,909.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,313.82 : 15,439.02 = 6,619.61 : x
  2. Step 2: Convert to fraction form
    10,313.82/15,439.02 = 6,619.61/x
  3. Step 3: Cross multiply
    10,313.82x = 15,439.02 × 6,619.61
  4. Step 4: Simplify right side
    10,313.82x = 102,200,213.99
  5. Step 5: Solve for x
    x = 102,200,213.99/10,313.82
  6. Step 6: Final answer
    x = 9,909.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.