Home / 11,139.56-16,709.40-3,348.80

Finding the Fourth Proportional to 11,139.56, 16,709.40 and 3,348.80

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Solution

The fourth proportional to 11,139.56, 16,709.40 and 3,348.80 is: 5,023.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.56 : 16,709.40 = 3,348.80 : x
  2. Step 2: Convert to fraction form
    11,139.56/16,709.40 = 3,348.80/x
  3. Step 3: Cross multiply
    11,139.56x = 16,709.40 × 3,348.80
  4. Step 4: Simplify right side
    11,139.56x = 55,956,438.72
  5. Step 5: Solve for x
    x = 55,956,438.72/11,139.56
  6. Step 6: Final answer
    x = 5,023.22

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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.