Home / 11,215.44-16,821.90-2,895.12

Finding the Fourth Proportional to 11,215.44, 16,821.90 and 2,895.12

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Solution

The fourth proportional to 11,215.44, 16,821.90 and 2,895.12 is: 4,342.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.44 : 16,821.90 = 2,895.12 : x
  2. Step 2: Convert to fraction form
    11,215.44/16,821.90 = 2,895.12/x
  3. Step 3: Cross multiply
    11,215.44x = 16,821.90 × 2,895.12
  4. Step 4: Simplify right side
    11,215.44x = 48,701,419.13
  5. Step 5: Solve for x
    x = 48,701,419.13/11,215.44
  6. Step 6: Final answer
    x = 4,342.35

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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.