Home / 11,961.16-16,506.85-6,655.86

Finding the Fourth Proportional to 11,961.16, 16,506.85 and 6,655.86

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Solution

The fourth proportional to 11,961.16, 16,506.85 and 6,655.86 is: 9,185.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,961.16 : 16,506.85 = 6,655.86 : x
  2. Step 2: Convert to fraction form
    11,961.16/16,506.85 = 6,655.86/x
  3. Step 3: Cross multiply
    11,961.16x = 16,506.85 × 6,655.86
  4. Step 4: Simplify right side
    11,961.16x = 109,867,282.64
  5. Step 5: Solve for x
    x = 109,867,282.64/11,961.16
  6. Step 6: Final answer
    x = 9,185.34

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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.