Home / 11,726-16,188.84-8,936.72

Finding the Fourth Proportional to 11,726, 16,188.84 and 8,936.72

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Solution

The fourth proportional to 11,726, 16,188.84 and 8,936.72 is: 12,337.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,726 : 16,188.84 = 8,936.72 : x
  2. Step 2: Convert to fraction form
    11,726/16,188.84 = 8,936.72/x
  3. Step 3: Cross multiply
    11,726x = 16,188.84 × 8,936.72
  4. Step 4: Simplify right side
    11,726x = 144,675,130.20
  5. Step 5: Solve for x
    x = 144,675,130.20/11,726
  6. Step 6: Final answer
    x = 12,337.98

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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.