Home / 10,125.28-15,185.94-2,729.80

Finding the Fourth Proportional to 10,125.28, 15,185.94 and 2,729.80

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Solution

The fourth proportional to 10,125.28, 15,185.94 and 2,729.80 is: 4,094.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125.28 : 15,185.94 = 2,729.80 : x
  2. Step 2: Convert to fraction form
    10,125.28/15,185.94 = 2,729.80/x
  3. Step 3: Cross multiply
    10,125.28x = 15,185.94 × 2,729.80
  4. Step 4: Simplify right side
    10,125.28x = 41,454,579.01
  5. Step 5: Solve for x
    x = 41,454,579.01/10,125.28
  6. Step 6: Final answer
    x = 4,094.17

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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.