Home / 11,221.56-16,826.28-4,643.64

Finding the Fourth Proportional to 11,221.56, 16,826.28 and 4,643.64

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Solution

The fourth proportional to 11,221.56, 16,826.28 and 4,643.64 is: 6,962.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.56 : 16,826.28 = 4,643.64 : x
  2. Step 2: Convert to fraction form
    11,221.56/16,826.28 = 4,643.64/x
  3. Step 3: Cross multiply
    11,221.56x = 16,826.28 × 4,643.64
  4. Step 4: Simplify right side
    11,221.56x = 78,135,186.86
  5. Step 5: Solve for x
    x = 78,135,186.86/11,221.56
  6. Step 6: Final answer
    x = 6,962.95

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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.