Home / 11,210.72-16,818.30-3,813.21

Finding the Fourth Proportional to 11,210.72, 16,818.30 and 3,813.21

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Solution

The fourth proportional to 11,210.72, 16,818.30 and 3,813.21 is: 5,720.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,210.72 : 16,818.30 = 3,813.21 : x
  2. Step 2: Convert to fraction form
    11,210.72/16,818.30 = 3,813.21/x
  3. Step 3: Cross multiply
    11,210.72x = 16,818.30 × 3,813.21
  4. Step 4: Simplify right side
    11,210.72x = 64,131,709.74
  5. Step 5: Solve for x
    x = 64,131,709.74/11,210.72
  6. Step 6: Final answer
    x = 5,720.57

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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.