Home / 10,813.25-16,219.89-2,605.25

Finding the Fourth Proportional to 10,813.25, 16,219.89 and 2,605.25

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Solution

The fourth proportional to 10,813.25, 16,219.89 and 2,605.25 is: 3,907.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,813.25 : 16,219.89 = 2,605.25 : x
  2. Step 2: Convert to fraction form
    10,813.25/16,219.89 = 2,605.25/x
  3. Step 3: Cross multiply
    10,813.25x = 16,219.89 × 2,605.25
  4. Step 4: Simplify right side
    10,813.25x = 42,256,868.42
  5. Step 5: Solve for x
    x = 42,256,868.42/10,813.25
  6. Step 6: Final answer
    x = 3,907.88

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1.5x scale

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.