Home / 10,603.24-15,905.64-2,812

Finding the Fourth Proportional to 10,603.24, 15,905.64 and 2,812

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Solution

The fourth proportional to 10,603.24, 15,905.64 and 2,812 is: 4,218.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,603.24 : 15,905.64 = 2,812 : x
  2. Step 2: Convert to fraction form
    10,603.24/15,905.64 = 2,812/x
  3. Step 3: Cross multiply
    10,603.24x = 15,905.64 × 2,812
  4. Step 4: Simplify right side
    10,603.24x = 44,726,659.68
  5. Step 5: Solve for x
    x = 44,726,659.68/10,603.24
  6. Step 6: Final answer
    x = 4,218.21

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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.