Home / 11,123.81-16,687.17-4,108.74

Finding the Fourth Proportional to 11,123.81, 16,687.17 and 4,108.74

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Solution

The fourth proportional to 11,123.81, 16,687.17 and 4,108.74 is: 6,163.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,123.81 : 16,687.17 = 4,108.74 : x
  2. Step 2: Convert to fraction form
    11,123.81/16,687.17 = 4,108.74/x
  3. Step 3: Cross multiply
    11,123.81x = 16,687.17 × 4,108.74
  4. Step 4: Simplify right side
    11,123.81x = 68,563,232.59
  5. Step 5: Solve for x
    x = 68,563,232.59/11,123.81
  6. Step 6: Final answer
    x = 6,163.65

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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.