Home / 10,517.06-15,775.78-2,725.68

Finding the Fourth Proportional to 10,517.06, 15,775.78 and 2,725.68

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Solution

The fourth proportional to 10,517.06, 15,775.78 and 2,725.68 is: 4,088.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,517.06 : 15,775.78 = 2,725.68 : x
  2. Step 2: Convert to fraction form
    10,517.06/15,775.78 = 2,725.68/x
  3. Step 3: Cross multiply
    10,517.06x = 15,775.78 × 2,725.68
  4. Step 4: Simplify right side
    10,517.06x = 42,999,728.03
  5. Step 5: Solve for x
    x = 42,999,728.03/10,517.06
  6. Step 6: Final answer
    x = 4,088.57

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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.