Home / 10,811.25-16,216.89-2,603.25

Finding the Fourth Proportional to 10,811.25, 16,216.89 and 2,603.25

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Solution

The fourth proportional to 10,811.25, 16,216.89 and 2,603.25 is: 3,904.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,811.25 : 16,216.89 = 2,603.25 : x
  2. Step 2: Convert to fraction form
    10,811.25/16,216.89 = 2,603.25/x
  3. Step 3: Cross multiply
    10,811.25x = 16,216.89 × 2,603.25
  4. Step 4: Simplify right side
    10,811.25x = 42,216,618.89
  5. Step 5: Solve for x
    x = 42,216,618.89/10,811.25
  6. Step 6: Final answer
    x = 3,904.88

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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.