Home / 11,123.40-16,704.20-9,876.84

Finding the Fourth Proportional to 11,123.40, 16,704.20 and 9,876.84

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Solution

The fourth proportional to 11,123.40, 16,704.20 and 9,876.84 is: 14,832.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,123.40 : 16,704.20 = 9,876.84 : x
  2. Step 2: Convert to fraction form
    11,123.40/16,704.20 = 9,876.84/x
  3. Step 3: Cross multiply
    11,123.40x = 16,704.20 × 9,876.84
  4. Step 4: Simplify right side
    11,123.40x = 164,984,710.73
  5. Step 5: Solve for x
    x = 164,984,710.73/11,123.40
  6. Step 6: Final answer
    x = 14,832.22

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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.