Home / 11,751.21-16,216.61-6,445.85

Finding the Fourth Proportional to 11,751.21, 16,216.61 and 6,445.85

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Solution

The fourth proportional to 11,751.21, 16,216.61 and 6,445.85 is: 8,895.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,751.21 : 16,216.61 = 6,445.85 : x
  2. Step 2: Convert to fraction form
    11,751.21/16,216.61 = 6,445.85/x
  3. Step 3: Cross multiply
    11,751.21x = 16,216.61 × 6,445.85
  4. Step 4: Simplify right side
    11,751.21x = 104,529,722.26
  5. Step 5: Solve for x
    x = 104,529,722.26/11,751.21
  6. Step 6: Final answer
    x = 8,895.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.