Home / 11,742.10-16,202.13-7,761.76

Finding the Fourth Proportional to 11,742.10, 16,202.13 and 7,761.76

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Solution

The fourth proportional to 11,742.10, 16,202.13 and 7,761.76 is: 10,709.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,742.10 : 16,202.13 = 7,761.76 : x
  2. Step 2: Convert to fraction form
    11,742.10/16,202.13 = 7,761.76/x
  3. Step 3: Cross multiply
    11,742.10x = 16,202.13 × 7,761.76
  4. Step 4: Simplify right side
    11,742.10x = 125,756,974.94
  5. Step 5: Solve for x
    x = 125,756,974.94/11,742.10
  6. Step 6: Final answer
    x = 10,709.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.