Home / 12,123.40-18,193.20-5,546.20

Finding the Fourth Proportional to 12,123.40, 18,193.20 and 5,546.20

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Solution

The fourth proportional to 12,123.40, 18,193.20 and 5,546.20 is: 8,323.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,123.40 : 18,193.20 = 5,546.20 : x
  2. Step 2: Convert to fraction form
    12,123.40/18,193.20 = 5,546.20/x
  3. Step 3: Cross multiply
    12,123.40x = 18,193.20 × 5,546.20
  4. Step 4: Simplify right side
    12,123.40x = 100,903,125.84
  5. Step 5: Solve for x
    x = 100,903,125.84/12,123.40
  6. Step 6: Final answer
    x = 8,323.01

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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.