Home / 11,139.40-16,676.70-6,754.60

Finding the Fourth Proportional to 11,139.40, 16,676.70 and 6,754.60

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Solution

The fourth proportional to 11,139.40, 16,676.70 and 6,754.60 is: 10,112.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.40 : 16,676.70 = 6,754.60 : x
  2. Step 2: Convert to fraction form
    11,139.40/16,676.70 = 6,754.60/x
  3. Step 3: Cross multiply
    11,139.40x = 16,676.70 × 6,754.60
  4. Step 4: Simplify right side
    11,139.40x = 112,644,437.82
  5. Step 5: Solve for x
    x = 112,644,437.82/11,139.40
  6. Step 6: Final answer
    x = 10,112.25

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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.