Home / 10,825.40-14,939.88-6,109.76

Finding the Fourth Proportional to 10,825.40, 14,939.88 and 6,109.76

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Solution

The fourth proportional to 10,825.40, 14,939.88 and 6,109.76 is: 8,431.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,825.40 : 14,939.88 = 6,109.76 : x
  2. Step 2: Convert to fraction form
    10,825.40/14,939.88 = 6,109.76/x
  3. Step 3: Cross multiply
    10,825.40x = 14,939.88 × 6,109.76
  4. Step 4: Simplify right side
    10,825.40x = 91,279,081.23
  5. Step 5: Solve for x
    x = 91,279,081.23/10,825.40
  6. Step 6: Final answer
    x = 8,431.94

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.